Significance of epidemiology as viewed by a government scientist.
D000818:Animals; D000969:Antinematodal Agents; D004195:Disease Models, Animal; D064420:Drug-Related Side Effects and Adverse Reactions; D004813:Epidemiology; D006801:Humans; D006846:Hydrocarbons, Halogenated; D008297:Male; D009787:Occupational Medicine; D009845:Oligospermia / Q000139:chemically induced; D010575:Pesticides / Q000506:poisoning; D011407:Propane / Q000031:analogs & derivatives; D014116:Toxicology
D000969:Antinematodal Agents; D006846:Hydrocarbons, Halogenated; D010575:Pesticides; D011407:Propane