In "Clinical trials of xenotransplantation: waiver of the right to withdraw from a clinical trial should be required".
Ravelingien
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D002986:Clinical Trials as Topic / Q000941:ethics* / Q000331:legislation & jurisprudence; D006801:Humans; D007258:Informed Consent / Q000331:legislation & jurisprudence*; D001523:Mental Disorders / Q000628:therapy*; D010352:Patient Dropouts / Q000331:legislation & jurisprudence*; D014183:Transplantation, Heterologous / Q000009:adverse effects / Q000941:ethics*