Heping Zhang

Fresh versus Frozen Embryos for Infertility in the Polycystic Ovary Syndrome

Zi‐Jiang Chen, Yuhua Shi, Yun Sun et al. · New England Journal of Medicine · 2016 · 801 citations · Full text

Familial Transmission of Substance Use Disorders

Kathleen R. Merikangas, Marilyn Stolar, Denise Stevens et al. · Archives of General Psychiatry · 1998 · 779 citations

Symptoms of obsessive-compulsive disorder

James F. Leckman, Dorothy E. Grice, James P. Boardman et al. · American Journal of Psychiatry · 1997 · 768 citations

Course of Tic Severity in Tourette Syndrome: The First Two Decades

James F. Leckman, Heping Zhang, Amy Vitale et al. · PEDIATRICS · 1998 · 684 citations

Preoperative Anxiety and Emergence Delirium and Postoperative Maladaptive Behaviors

Zeev N. Kain, Alison A. Caldwell-Andrews, Inna Maranets et al. · Anesthesia & Analgesia · 2004 · 661 citations