Roundworm plague and wastewater disposal in Darmstadt.
D001196:Ascariasis / Q000453:epidemiology* / Q000706:statistics & numerical data*; D001699:Biometry; D012722:Sewage
D012722:Sewage
ASCARIASIS/epidemiology and statistics; SEWAGE/disposal and purification
Spulwurmplage und Abwasserbeseitigung in Darmstadt.