52
Participants
Start Date
July 31, 2011
Primary Completion Date
July 31, 2012
Study Completion Date
May 31, 2013
Zinc Sulfate
zinc sulfate solution, contains 20 mg. per 5 mL. dosage 2.5 mL. per day.
placebo
cornstarch powder diluted in distilled water, dosage 2.5 ml per day
Centro Pediatrico Albina Patino, Cochabamba
Centro Pediatrico Albina de Patino
OTHER