1. McMaster University; Departments of Health Research Methods, Evidence, and Impact; 1280 Main Street West Hamilton Ontario Canada L8S 4L8
2. Hospital Civil de Guadalajara "Dr. Juan I Menchaca"; Internal Medicine; Salvador Quevedo y Zubieta No. 750 Guadalajara Mexico
3. Hospital Civil de Guadalajara Dr. Juan I. Menchaca; Department of Pediatrics; Salvador Quevedo y Zubieta No. 750 Guadalajara Jalisco Mexico 44340
4. Hospital Universitario 12 de Octubre; Department of Urology; Avenida de Córdoba, s/n Madrid Madrid Spain 28041
5. University of Connecticut; Department of Pharmacy Practice; Storrs USA
6. Institute of Biomedical Research Sant Pau (IIB Sant Pau), Barcelona; Iberoamerican Cochrane Centre; Sant Antoni Ma Claret, 171 Barcelona Barcelona Spain 08041
7. McMaster University; Department of Health Research Methods, Evidence, and Impact; 1280 Main Street West. HSC-2C Hamilton Ontario Canada L8S 4K1