Public health in China.
D000818:Animals; D002681:China; D003148:Communism; D003153:Community Health Services; D004199:Disease Vectors; D006266:Health Education; D006801:Humans; D008403:Mass Screening; D008499:Medical Records; D010272:Parasitic Diseases / Q000517:prevention & control; D011314:Preventive Health Services; D011634:Public Health; D012037:Refuse Disposal; D012552:Schistosomiasis / Q000517:prevention & control