TY - BOOK AU - World Health Organization TI - Helminth control in school-age children: a guide for managers of control programmes SN - 92 4 154556 9 U1 - WC800 PY - 2002/// CY - Geneva PB - W H O KW - Drug Therapy KW - Helminthiasis - Prevention and Control N2 - Helminthiasis - Prevention and Control, Drug Therapy ER -