biostudies-literatureUnknown36(19)Freidlin BJournal of clinical oncology : official journal of the American Society of Clinical Oncology1902-1904https://www.ebi.ac.uk/biostudies/studies/S-EPMC6075858biostudies-literatureBias, Operational Bias, and Generalizability in Phase II/III Trials.PMC6075858Korn ELFreidlin BAbrams JSfalseBias, Operational Bias, and Generalizability in Phase II/III Trials.2018-01-01T00:00:00Z2018 Jul2025-04-04T09:27:47.23Z2025-04-04T09:27:47.23ZS-EPMC60758582969810410.1200/jco.2017.77.047910.1200/JCO.2017.77.0479