Interpreting study designs in surgical research: a practical guide for surgeons and surgical residents.
Ridgway
Paul F
PF
Department of Surgical Oncology, Princess Margaret Hospital, Toronto, ON, Canada.
Guller
Ulrich
U
D035843:Biomedical Research / Q000592:standards; D016022:Case-Control Studies; D015331:Cohort Studies; D015986:Confounding Factors, Epidemiologic; D019317:Evidence-Based Medicine / Q000458:organization & administration / Q000592:standards*; D013502:General Surgery / Q000193:education; D006801:Humans; D007396:Internship and Residency; D015201:Meta-Analysis as Topic; D012107:Research Design / Q000592:standards