1. Volume 126, Pages S164-S168 (January 2004)
Control groups appropriate for surgical interventions: ethical and practical issues 
Morton B Brown 
Gastroenterology 
Volume 126, Pages S164-S168 (January 2004)
DOI: /j.gastro

2. Figure 1
Patient selection and identification model for pelvic floor disorders clinical surgical trial. HYS, hysterectomy; SSLS, sacrospinal ligament suspension; ASCP, abdominal sacral colpopexy; MAYO, Mayo culdoplasty. ∗Patient or surgeon chooses not to randomize.
Gastroenterology  , S164-S168DOI: ( /j.gastro )