Wanachiwanawin, D. , Manatsathit, S., Lertlaituan, P. , Thakerngpol, K. and Suwanagool, P. 1999. Intestinal Parasitic Infections in HIV and non-HIV Infected Patients with Chronic Diarrhea in Thailand. Siriraj Medical Journal. 51, 3 (Mar. 1999), 147–152.