title: Population studies on Oncomelania quadrasi, the snail intermediate host of Schistosoma japonicum, in the Philippines. 4. Evaluation of drainage for snail control.
mesh_terms: D000818:Animals; D004323:Drainage, Sanitary; D010572:Pest Control, Biological / Q000379:methods*; D012549:Schistosoma japonicum; D012552:Schistosomiasis / Q000517:prevention & control; D012908:Snails / Q000469:parasitology*