Am J Obstet Gynecol Tsui B, Dennehy C, Tsourounis C. A survey of dietary supplement use inpregnancy at an Academic Medical Center. Am J Obstet Gynecol. 2001; 2 Pt 1(185):433-437. 2001 https://researcherprofiles.org/profile/428768847 Tsui B, Dennehy C, Tsourounis C