Problems in drug investigation with particular reference to the special senses.
D000818:Animals; D000830:Animals, Laboratory; D064420:Drug-Related Side Effects and Adverse Reactions; D004423:Ear / Q000187:drug effects*; D004427:Ear Diseases / Q000139:chemically induced; D005123:Eye / Q000187:drug effects*; D005128:Eye Diseases / Q000139:chemically induced; D005260:Female; D006652:Histological Techniques; D006801:Humans; D008297:Male; D012106:Research; D014116:Toxicology