Schall, V. T.; Dias, Ângela G. P.; Malaquias, M. L. G.; Gomes dos Santos, M. Health Education in First Level Schools at the Outskirts of Belo Horizonte, Minas Gerais State, Brazil: I. Evaluation of a Health Education Program on Schistosomiasis . Rev. Inst. Med. Trop. São Paulo 1993, 35 (6), 563-572.