[1] Univ Sci Tech & Technol, Bamako, Mali
[2] Muslim Educ Soc Med Coll Hosp, Perinthalmanna, India
[3] Task Force Global Hlth, Children Worms, Decatur, GA USA
[4] Univ Peruana Cayetano Heredia, Lima, Peru
[5] King Faisal Specialist Hosp & Res Ctr, Dept Med, Riyadh, Saudi Arabia
[6] Johns Hopkins Univ, Div Gastroenterol & Hepatol, Baltimore, MD USA
[7] Levy Mwanawasa Med Univ, Lusaka, Zambia
[8] Alfaisal Univ, Minist Hlth, King Saud Med City, Res & Innovat Ctr, Riyadh 11514, Saudi Arabia
[9] Alfaisal Univ, Coll Med, Riyadh 11514, Saudi Arabia
[10] Emory Univ, Rollins Sch Publ Hlth, Hubert Dept Global Hlth, Atlanta, GA 30322 USA