Hernia, Inguinal

• Washington University — St Louis, Missouri, United States
• Mount Sinai Hospital — New York, United States
• New Hanover Regional Medical Center — Wilmington, North Carolina, United States
• Cleveland Clinic Foundation — Cleveland, Ohio, United States

• CampusBioMedico — Rome, Italy

• St.Orsola-Malpighi University Hospital — Bologna, Italy

• Pfizer Investigational Site — Birmingham, Alabama, United States
• Pfizer Investigational Site — Glendale, California, United States
• Pfizer Investigational Site — Laguna Hills, California, United States
• Pfizer Investigational Site — Pasadena, California, United States

• Kuopio University Hospital — Kuopio, Finland

Not specified

• Department of Surgery, The University of Hong Kong — Hong Kong, China

• Department of Surgery, The University of Hong Kong - Shenzhen Hospital — Shenzhen, Guangdong, China

Not specified

• KEMU — Lahore, Punjab Province, Pakistan