U-shaped association between sleep duration with chronic constipation and diarrhea: A population-based study

Dongyan Wanga†, Yan Lib†, Yihai Shia* & Zhengyu Huc* a Department of Gastroenterology, Shanghai Pudong New Area Gongli Hospital, Shanghai, Chinab Department of Gastroenterology, Shanghai Tenth People's Hospital, Affiliated to Tongji University School of Medicine, Shanghai, Chinac Department of General Surgery, Shanghai Tenth People's Hospital, Affiliated to Tongji University School of Medicine, Shanghai, China