@MISC{10665-66082, author = {Montresor, A and Gyorkos, Theresa W and Crompton, David W. T and Bundy, D. A. P and Savioli, L and World Health Organization. Communicable Diseases Prevention and Control}, title = {Monitoring helminth control programmes : guidelines for monitoring the impact of control programmes aimed at reducing morbidity caused by soil-transmitted helminths and schistosomes, with particular reference to school-age children / A. Montresor ... [et al.]}, year = {1999}, pages = {WHO/CDS/CPC/SIP/99.3}, publisher = {World Health Organization} }