Several aspects in study design need further consideration

Zhou, CB; Fang, JY

Fang, JY (reprint author), Shanghai Jiao Tong Univ, Div Gastroenterol & Hepatol, Sch Med,State Key Lab Oncogene & Related Gene,Sha, Renji Hosp,Key Lab Gastroenterol & Hepatol,Minist, Shanghai 200001, Peoples R China.

GUT, 2018; 67 (11): 2070