Cervical Ripening

• Osaka Medical Center and Research Institute for Maternal and Child Health — Izumi, Osaka, Japan
• Hamamatsu University Hospital — Hamamatsu, Shizuoka, Japan
• Seirei Hamamatsu General Hospital — Hamamatsu, Shizuoka, Japan
• Jichi Medical University Hospital — Shimotsuke, Tochigi, Japan

Not specified

• Planned Parenthood League of Massachusetts — Boston, Massachusetts, United States

• Stanford University School of Medicine — Stanford, California, United States

Not specified

• Maricopa Medical Center - District Medical Group — Phoenix, Arizona, United States
• Precision Trials — Phoenix, Arizona, United States
• Phoenix Perinatal Associates (Scottsdale Healthcare Shea) — Scottsdale, Arizona, United States
• Watching Over Mothers and Babies Foundation — Tucson, Arizona, United States

• Precision Trials — Phoenix, Arizona, United States
• Tuscon Medical Center — Tucson, Arizona, United States
• Long Beach Memorial Medical Center — Long Beach, California, United States
• UCI Medical Center — Orange, California, United States

• Huntington Memorial Hospital — Pasadena, California, United States

• Zhongda Hospital ,Southeast University — Nanjing, Jiangsu, China
• The First Affliated Hospital with Nanjing Meical Uniersity — Nanjing, Jiangsu, China
• Sichuan Provincial People's Hospital — Chengdu, Sichuan, China
• Southwest Hospital — Chongqing, China

• MetroHealth Medical Center — Cleveland, Ohio, United States