基本错误 过度解读 证据确定性: 低 初步 C-CHM-11

癌细胞之所以对化疗产生耐药,是因为其纤维化的间质(基质)环境;纤维化会“扼杀”细胞,细胞随后发生癌变,并对化疗和放疗产生抵抗。

安全提示: 请勿为了饮食疗法而拒绝、停止或推迟推荐的癌症治疗(手术、化疗、放疗、激素治疗或靶向治疗)。对于可治愈的癌症,用替代疗法取代标准治疗与明显更高的死亡风险相关(I-CHM-03、I-CHM-04),即使仅推迟四周也与更高的死亡率相关(I-CHM-07)。远期不良反应确实存在,可通过癌症幸存者随访照护和心脏肿瘤学照护加以处理;请与负责治疗的肿瘤团队讨论。营养方案可在治疗的同时与肿瘤团队一起调整。本页不提供个体化医疗建议。
简而言之: 基本错误:在某些癌症中,肿瘤基质可能促成耐药,但它并不是癌症或治疗失败的普遍原因;针对基质的治疗并未使患者获益,而且即使在胰腺癌这类高度纤维化的肿瘤中,化疗也能延长生存期。
结论: 在某些肿瘤中,基质可能促成耐药,但它不是一种普遍适用的解释,也不能成为回避治疗的理由。

原始表述

حذّر الدكتور ضياء العوضي من العلاج الكيميائي والجراحة لإزالة الأورام، معتبراً أنها لا تعالج الأسباب الجذرية، وأن الجسم سيعيد تفعيل خطته الدفاعية في مكان آخر، ورأى أن الخلايا السرطانية تقاوم العلاج الكيماوي بسبب بيئتها الخلالية المتليفة.

非原话——为转述. 译文由本项目提供;以阿拉伯语原文为准。

译文

癌细胞之所以对化疗产生耐药,是因为其纤维化的间质(基质)环境;纤维化会“扼杀”细胞,细胞随后发生癌变,并对化疗和放疗产生抵抗。

出处

来源状态
档案网站引语(未注明出处)
归属
Elawady (archive paraphrase; source video not given)
出处
https://eltayebat.com/rule/chemo-radiation/
归属的不确定性
The archive attributes this text to Dr. Diaa in its 'د. ضياء يقول' box but gives no video reference. Transcript check (the project's research files, keyword search of 307 archive transcripts): found_close_paraphrase. The link between the interstitial (stromal) environment and chemotherapy resistance/aggressiveness is found in PI73-XbTbwU and the fibrosis image in o8BWuF9wmoM (both already alt sources); no single passage contains the whole quote.
所声称的机制

Fibrosis of interstitial tissue -> hypoxic cells -> cancer and resistance

所声称的健康影响

Chemoresistance

涉及人群

Cancer patients

Elawady 设定的地域限制

none found

来源版本存在差异

الليف خنق الخلايا اللي جنبه الخلايا دي عايزه تتنفس تعمل خلايا سرطانيه خليه ما تمتش خليه تعيش تقاوم الكيماوي

来源状态
视频转录文本(本人原话)
归属
Elawady (machine transcript)
视频
النسيج الخلالي و نشوء السرطان (打开来源)
发布日期
2025年9月19日
时间戳
0:01:16 (在原视频 YouTube 自动字幕轨中的位置;可确认该内容出现的位置,但不能确认说话人是谁)

عشان كده يقول لك ايه بيقاوم الكيماوي

来源状态
视频转录文本(本人原话)
归属
Elawady (machine transcript)
视频
Dr.D Clinics - Diaa Al Awady is live! الغذاء المغشوش (打开来源)
发布日期
2025年5月31日
时间戳
0:26:25 (在原视频 YouTube 自动字幕轨中的位置;可确认该内容出现的位置,但不能确认说话人是谁)

科学评估

基本错误 – 该说法的主要部分没有证据支持,或被严重夸大。

证据确定性: 低 – 进一步研究很可能大幅改变该评估。

1. 说法是什么?

Chemoresistance is caused by the fibrotic interstitial environment; fibrosis creates cancer.

2. 哪些内容可证实是正确的?

Dense tumour stroma can impair drug delivery: in a genetically engineered mouse model of pancreatic cancer, only 32% of tumour vessels were perfused; depleting the stroma raised intratumoral gemcitabine metabolites by 60% and transiently prolonged survival (11 to 25 days) before tumours resumed growth (I-CHM-11). This supports only that tumour stroma can hinder drug delivery in one tumour type in mice. Chronic inflammation/fibrosis is a recognised risk setting for some cancers (not reviewed in detail here).

3. 哪些内容是错误或夸大的?

As a universal rule it is wrong: many cancers are highly chemosensitive and curable (childhood ALL 5-year survival 90.4%, I-CHM-05; testicular cancer 95% 10-year survival, A-CHM-14). Resistance has multiple causes (tumour genetics, drug efflux, etc.). The step from 'resistance exists' to 'do not treat' is not supported.

4. 哪些内容仍不明确?

The share of chemoresistance attributable to stroma in human cancers. No source reviewed here tests the claim that fibrosis causes malignant transformation or radiation resistance.

5. 哪些研究支持该说法?

Partial, mechanistic only: I-CHM-11 (stroma hinders drug delivery in mouse pancreatic cancer); I-CHM-119 (review: tumour microenvironment can protect cancer cells from initial therapy); I-CHM-129 (stroma-rich ovarian tumours more often platinum-resistant in one of two cohorts; no association in the other).

6. 哪些研究与该说法相矛盾?

I-CHM-118 (phase III RCT: degrading tumour stroma added to chemotherapy did not improve survival, HR 1.00); I-CHM-120 (in pancreatic cancer, a very stroma-rich tumour, adjuvant chemotherapy doubled 5-year survival); I-CHM-117 (in mice, removing stroma made tumours more aggressive); I-CHM-05, A-CHM-14 (highly chemosensitive curable cancers).

7. 对德国和欧洲而言情况如何?

Not region-specific: tumour biology and chemosensitivity do not depend on the country; no Europe-specific data were reviewed.

8. 关于埃及的已知情况是什么?

Not region-specific; no Egyptian data were reviewed. Differences in access to treatment do not change the biology.

9. 合理的实际结论是什么?

对某一种药物耐药,是与肿瘤科医生一起选择其他治疗的理由,而不是停止治疗的理由。

评估详情

证据确定性的依据

Mechanistic animal data support a partial stromal contribution in some tumours; as a general explanation it conflicts with the high chemosensitivity of many cancers. Evidence base reviewed here is limited.

来源质量

Archive paraphrase + transcripts.

说法的地域范围
普遍性(生物学/医学)
最近审核
2026年10月26日 初步

科学证据详解

过度解读 – 确有真实的发现,但该说法从中引申出的结论超出了数据所能支持的范围(例如把关联当作因果、把动物数据套用到人身上、把小效应说成大效应)。

研究问题: Is fibrotic tumour stroma a general cause of cancer and of resistance to chemotherapy and radiotherapy, such that treatment is futile?

研究问题详解 (PECO)
人群
Patients with solid tumours; experimental models
干预或暴露
Stroma-rich/fibrotic tumour microenvironment; stroma-targeting therapy
对照
Stroma-poor tumours; chemotherapy without stroma targeting
地域范围
universal biology
结局指标
  • Chemoresistance
  • Survival

研究结果按作者报告呈现。我们的评估见下文。

哪些证据支持该说法?

哪些证据不支持该说法?

总体证据说明了什么?

基于上述研究的编辑评估——其本身并非研究结果。

哪种观点有更好的证据支持?

Stroma can contribute to drug resistance in some tumours, and chronic fibrosis is a risk setting for some organ cancers (e.g. cirrhosis and liver cancer; not reviewed in detail); but stroma is not a general explanation of cancer or treatment failure, stroma-targeting failed in a phase III trial, and chemotherapy works even in stroma-rich tumours.

为什么有些研究权重更大

Human RCTs outweigh mouse and prognostic studies.

因果关系是否已确立? 有可能,尚未确立 Stroma-mediated resistance is plausible and shown in models; not established as a decisive cause in patients.

仍存在的不确定性

Which stroma components protect or restrain tumours.

合理的结论

Mostly false as stated; the mechanistic kernel is partly real, the conclusion (avoid treatment) is wrong.

为什么研究结果看起来互相矛盾?

Mouse data (I-CHM-11: stroma impedes drugs; I-CHM-117: stroma restrains tumours) show opposite roles of stroma; the human phase III trial (I-CHM-118) suggests targeting stroma does not change survival.

这是否取决于国家?
一般生物学效应
Universal biology.
饮食习惯
Not relevant.
食品原产地
Not relevant.
污染物
Not relevant.
本国生产条件
Not relevant.
法律规则
Not relevant.
实际监测数据
No monitoring data relevant.

足以改变结论的地区差异没有可靠数据支持。

统计复核
  • Log-symmetry – HR 1.00 (0.80-1.27) symmetric 已重新计算
  • Effect-measure wording – 'Twice as likely' reported as 'HR 2.861' for a cross-sectional comparison: the measure should be an OR/RR, and 2.86 is not 'twice'; association also absent in the TCGA cohort 已重新计算
总体证据的确定性(GRADE,简化版)
主要结局
Stroma as cause of chemotherapy failure in patients
起始等级
低(观察性研究)
降级理由
  • indirectness (mostly animal/prognostic)
  • inconsistency
结果
低

由单名审查者参照 GRADE 方法进行的简化评估;并非正式的 GRADE 专家组评估。GRADE 评价的是针对某一结局的整体证据,而非单项研究。

检索策略

本次审查的文献检索记录(检索式采用原数据库语法)。

数据库日期检索式检索目标命中数纳入数
Europe PMC2026年10月26日(TITLE:"stroma" OR TITLE:"microenvironment" OR TITLE:"fibrosis" OR TITLE:"desmoplas") AND (TITLE:"drug resistance" OR TITLE:"chemoresistance") AND (PUB_TYPE:"review") AND PUB_YEAR:[2009 TO 2026]支持性证据130
Europe PMC2026年10月26日TITLE:"Environment-mediated drug resistance" AND AUTH:"Meads"支持性证据1
PubMed2026年10月26日(stroma[ti] OR stromal[ti] OR desmoplas*[ti] OR fibrosis[ti]) AND (chemoresistance[ti] OR "drug resistance"[ti] OR "chemotherapy resistance"[ti]) AND (patients[tiab]) AND (cohort[tiab] OR trial[tiab])支持性证据4
Europe PMC2026年10月26日(TITLE:"fibrosis" OR TITLE:"cirrhosis") AND TITLE:"hepatocellular carcinoma" AND TITLE:"risk" AND (TITLE:"meta-analysis" OR TITLE:"cohort") AND PUB_YEAR:[2015 TO 2026]支持性证据27
Europe PMC2026年10月26日TITLE:"Stromal elements act to restrain, rather than support, pancreatic ductal adenocarcinoma"反对性证据1
Europe PMC2026年10月26日(TITLE:"PEGPH20" OR TITLE:"pegvorhyaluronidase") AND TITLE:"phase III"反对性证据2
Europe PMC2026年10月26日TITLE:"Adjuvant chemotherapy with gemcitabine and long-term outcomes among patients with resected pancreatic cancer"反对性证据1

待解决的问题

Role of fibrosis in specific organ cancers (liver, lung) not reviewed in detail.

核查深度如何?

8 项相关研究:2 项核查了全文(其中 2 项进行了结构化偏倚风险评估),6 项基于摘要核查,0 项仅核查了文献信息。 尚未进行由两名独立审查者完成的正式评估,也尚未进行独立的人类专家审核。

最近一次科学审核: 2026年10月26日

评定结论的变更历史
  1. 2026年10月25日 · 第 1 阶段 · 初始评估: 基本错误 (低)
  2. 2026年10月26日 · 第 4 阶段(系统证据审查) · 在扩展证据后重新审查;评定结论不变: 基本错误 (低)
    New evidence covers both sides (supporting mechanism; negative human RCT; chemotherapy benefit in fibrotic tumours). It confirms the existing verdict; certainty for the mechanistic question stays low, while the practical conclusion (do not treat) is clearly contradicted.
    新来源: I-CHM-117 I-CHM-118 I-CHM-119 I-CHM-120 I-CHM-129

通俗解释

有些肿瘤(例如胰腺癌)被致密的组织包围,这些组织会阻挡药物进入。这是某些癌症治疗效果不佳的几个原因之一。但许多癌症,例如儿童白血病和睾丸癌,对化疗反应非常好,通常能够治愈。

与该说法相关的研究

支持该说法的研究 (2)

  • Tumour surroundings can protect cancer cells from drugs

    Meads MB et al.. Nat Rev Cancer 2009 · PMID 19693095 · DOI 10.1038/nrc2714
    叙述性综述独立交叉核查已核查摘要

    Signals between cancer cells and their surroundings can make some cells resist treatment at first.

    Microenvironment-mediated drug resistance is a recognised mechanism; supports the narrow mechanistic part only.

    该研究是否支持这一具体说法? 部分支持 · 方法学质量: 低 · 证据确定性:见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么?

    Review resistance caused by the tumour environment

    研究是如何开展的?

    Narrative review

    研究了多少人、动物或样本?

    Not applicable

    实际发现了什么?

    Environment can protect cancer cells

    观察到的效应有多大?

    Not applicable

    研究结果对日常生活意味着什么?

    One reason some cancer cells survive treatment

    该研究有哪些局限?

    Narrative; mostly lab evidence

    它对 Elawady 的具体说法说明了什么?

    Partly supports the mechanism; authors recommend better treatment, not none

    研究结果是否适用于德国和欧洲?

    Moderate

    从该研究中明确不能得出什么结论?

    Cannot support avoiding treatment

    科学细节 →

  • More stroma, more chemotherapy resistance in ovarian cancer?

    Lou E et al.. JAMA Netw Open 2024 · PMID 38411963 · DOI 10.1001/jamanetworkopen.2024.0407
    队列研究独立交叉核查已核查摘要

    In a German cohort, tumours with much stroma resisted platinum chemotherapy more often; a US cohort showed no such link.

    Narrow support: high stroma content associated with platinum resistance in one of two cohorts.

    该研究是否支持这一具体说法? 部分支持 · 方法学质量: 中 · 证据确定性:见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么?

    Test stroma as a resistance marker

    研究是如何开展的?

    Two retrospective cohorts

    研究了多少人、动物或样本?

    295 patients

    实际发现了什么?

    Association in one cohort, not the other

    观察到的效应有多大?

    OS HR 1.867 (Tuebingen); null in TCGA

    研究结果对日常生活意味着什么?

    Stroma may matter for some tumours

    该研究有哪些局限?

    Inconsistent; retrospective

    它对 Elawady 的具体说法说明了什么?

    Partly supports the mechanism only

    研究结果是否适用于德国和欧洲?

    Moderate

    从该研究中明确不能得出什么结论?

    Cannot support avoiding chemotherapy

    科学细节 →

与该说法相矛盾或限制该说法的研究 (5)

  • About 9 in 10 children with leukaemia now survive

    Hunger SP et al.. J Clin Oncol 2012 · PMID 22412151 · DOI 10.1200/JCO.2011.37.8018
    队列研究独立交叉核查已核查摘要★ 关键研究

    5-year survival in childhood ALL rose to 90.4% by 2000-2005.

    Chemosensitive cancer

    该研究是否支持这一具体说法? 否 · 方法学质量: 高 · 证据确定性:见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么?

    Track ALL survival.

    研究是如何开展的?

    Trial cohort analysis.

    研究了多少人、动物或样本?

    21,626.

    实际发现了什么?

    83.7% -> 90.4%.

    观察到的效应有多大?

    +6.7 points.

    研究结果对日常生活意味着什么?

    Childhood leukaemia is usually curable with treatment.

    该研究有哪些局限?

    Trial patients.

    它对 Elawady 的具体说法说明了什么?

    Benefit side.

    研究结果是否适用于德国和欧洲?

    Moderate.

    从该研究中明确不能得出什么结论?

    Survival outside trials.

    科学细节 →

  • Testicular cancer survivors face late effects but almost all survive

    Fung C et al.. Adv Urol 2018 · PMID 29670654 · DOI 10.1155/2018/8671832
    叙述性综述被 Tayebat 档案网站引用全文,含结构化偏倚风险评估

    10-year relative survival is 95%; heart disease and second cancers are the main serious late effects.

    Chemosensitive cancer

    该研究是否支持这一具体说法? 部分支持 · 方法学质量: 低 · 证据确定性:见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么?

    Review late effects.

    研究是如何开展的?

    Narrative review.

    实际发现了什么?

    Multiple late effects.

    研究结果对日常生活意味着什么?

    Long-term check-ups and healthy lifestyle.

    该研究有哪些局限?

    Narrative review without systematic search or quality appraisal; much evidence from older treatment eras.

    它对 Elawady 的具体说法说明了什么?

    Mixed.

    研究结果是否适用于德国和欧洲?

    High.

    从该研究中明确不能得出什么结论?

    Quantitative risks.

    科学细节 →

  • Tumour scar tissue can hold cancer back

    Rhim AD et al.. Cancer Cell 2014 · PMID 24856585 · DOI 10.1016/j.ccr.2014.04.021
    动物研究独立交叉核查已核查摘要

    In mice, removing the scar-like stroma around pancreatic tumours made them more aggressive.

    Stroma can restrain tumours; depleting it worsened disease in mice.

    该研究是否支持这一具体说法? 否 · 方法学质量: 中 · 证据确定性:见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么?

    Test the role of tumour stroma

    研究是如何开展的?

    Mouse experiments

    研究了多少人、动物或样本?

    Mouse pancreatic cancer model

    实际发现了什么?

    Stroma restrains tumour growth

    观察到的效应有多大?

    Not applicable

    研究结果对日常生活意味着什么?

    Fibrosis is not simply the enemy

    该研究有哪些局限?

    Animal model

    它对 Elawady 的具体说法说明了什么?

    Contradicts the simple fibrosis explanation

    研究结果是否适用于德国和欧洲?

    Low

    从该研究中明确不能得出什么结论?

    Cannot be applied directly to patients

    科学细节 →

  • Breaking down tumour stroma did not help patients live longer

    Van Cutsem E et al.. J Clin Oncol 2020 · PMID 32706635 · DOI 10.1200/JCO.20.00590
    随机对照试验独立交叉核查已核查摘要

    A drug that degrades pancreatic tumour stroma, added to chemotherapy, did not prolong survival (11.2 vs 11.5 months).

    Targeting tumour stroma did not improve survival; stroma is not the decisive cause of treatment failure.

    该研究是否支持这一具体说法? 否 · 方法学质量: 高 · 证据确定性:见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么?

    Test stroma-degrading drug in patients

    研究是如何开展的?

    Randomised blinded trial

    研究了多少人、动物或样本?

    494 patients

    实际发现了什么?

    No survival gain

    观察到的效应有多大?

    HR 1.00

    研究结果对日常生活意味着什么?

    The fibrosis explanation for treatment failure did not hold up in patients

    该研究有哪些局限?

    One drug, one cancer

    它对 Elawady 的具体说法说明了什么?

    Contradicts the claim's mechanism

    研究结果是否适用于德国和欧洲?

    High

    从该研究中明确不能得出什么结论?

    Does not rule out other stroma roles

    科学细节 →

  • Chemotherapy after pancreatic cancer surgery

    Oettle H et al.. JAMA 2013 · PMID 24104372 · DOI 10.1001/jama.2013.279201
    随机对照试验独立交叉核查已核查摘要★ 关键研究

    Chemotherapy after surgery doubled 5-year survival (21% vs 10%) compared with surgery alone.

    Chemotherapy works even in the most stroma-rich tumour type.

    该研究是否支持这一具体说法? 否 · 方法学质量: 高 · 证据确定性:见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么?

    Test chemotherapy after pancreatic surgery

    研究是如何开展的?

    Randomised trial

    研究了多少人、动物或样本?

    354 patients

    实际发现了什么?

    Longer survival with chemotherapy

    观察到的效应有多大?

    5-y OS 20.7% vs 10.4%

    研究结果对日常生活意味着什么?

    Even in a hard-to-treat cancer, chemotherapy saves some lives

    该研究有哪些局限?

    Open-label

    它对 Elawady 的具体说法说明了什么?

    Contradicts 'chemo cannot work because of fibrosis'

    研究结果是否适用于德国和欧洲?

    High

    从该研究中明确不能得出什么结论?

    Cannot promise cure for an individual

    科学细节 →

结果不一或不明确的研究 (1)

  • Dense tissue around pancreatic tumours can block chemotherapy in mice

    Olive KP et al.. Science 2009 · PMID 19460966 · DOI 10.1126/science.1171362
    动物研究独立交叉核查全文,含结构化偏倚风险评估

    Reducing the tumour's supporting tissue briefly let more drug reach the tumour.

    Stroma can impede drug delivery in pancreatic cancer

    该研究是否支持这一具体说法? 部分支持 · 方法学质量: 中 · 证据确定性:见该说法的总体评估

    原始文献 · 科学细节

    研究通俗解读
    研究人员想了解什么?

    Test stroma as drug barrier.

    研究是如何开展的?

    Mouse experiment.

    研究了多少人、动物或样本?

    Genetically engineered mice (groups of about 10-17) plus 18 human tumour samples.

    实际发现了什么?

    Transient better delivery.

    观察到的效应有多大?

    Drug level in the tumour +60%; median survival 25 vs 11 days with the combination.

    研究结果对日常生活意味着什么?

    One of several reasons some cancers resist chemotherapy.

    该研究有哪些局限?

    Animal, transient.

    它对 Elawady 的具体说法说明了什么?

    Partial support.

    从该研究中明确不能得出什么结论?

    That all chemotherapy resistance is due to fibrosis; that fibrosis turns cells cancerous; any benefit in patients.

    科学细节 →

地区背景

德国 / 欧盟

Not region-specific: tumour biology and chemosensitivity do not depend on the country; no Europe-specific data were reviewed.

埃及

Not region-specific; no Egyptian data were reviewed. Differences in access to treatment do not change the biology.

在我的国家适用什么?

一般科学评估

基本错误 在某些肿瘤中,基质可能促成耐药,但它不是一种普遍适用的解释,也不能成为回避治疗的理由。

该说法涉及生物学或医学关系。上述科学评估不论在哪个国家都适用;各国食品数据不会改变这一评估。

参考文献

  1. Environment-mediated drug resistance: a major contributor to minimal residual disease.. Meads MB et al.. Nat Rev Cancer 2009 · PMID 19693095 · DOI 10.1038/nrc2714
  2. Tumor-Stroma Proportion to Predict Chemoresistance in Patients With Ovarian Cancer.. Lou E et al.. JAMA Netw Open 2024 · PMID 38411963 · DOI 10.1001/jamanetworkopen.2024.0407
  3. Improved survival for children and adolescents with acute lymphoblastic leukemia between 1990 and 2005: a report from the children's oncology group.. Hunger SP et al.. J Clin Oncol 2012 · PMID 22412151 · DOI 10.1200/JCO.2011.37.8018
  4. Toxicities Associated with Cisplatin-Based Chemotherapy and Radiotherapy in Long-Term Testicular Cancer Survivors.. Fung C et al.. Adv Urol 2018 · PMID 29670654 · DOI 10.1155/2018/8671832
  5. Stromal elements act to restrain, rather than support, pancreatic ductal adenocarcinoma.. Rhim AD et al.. Cancer Cell 2014 · PMID 24856585 · DOI 10.1016/j.ccr.2014.04.021
  6. Randomized Phase III Trial of Pegvorhyaluronidase Alfa With Nab-Paclitaxel Plus Gemcitabine for Patients With Hyaluronan-High Metastatic Pancreatic Adenocarcinoma.. Van Cutsem E et al.. J Clin Oncol 2020 · PMID 32706635 · DOI 10.1200/JCO.20.00590
  7. Adjuvant chemotherapy with gemcitabine and long-term outcomes among patients with resected pancreatic cancer: the CONKO-001 randomized trial.. Oettle H et al.. JAMA 2013 · PMID 24104372 · DOI 10.1001/jama.2013.279201
  8. Inhibition of Hedgehog signaling enhances delivery of chemotherapy in a mouse model of pancreatic cancer.. Olive KP et al.. Science 2009 · PMID 19460966 · DOI 10.1126/science.1171362

← 返回概览