Keratitis nummularis (Dimmer) among rice-cultivators in North Malaya.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000382:Agricultural Workers' Diseases / Q000453:epidemiology*; D002648:Child; D006801:Humans; D007637:Keratoconjunctivitis / Q000453:epidemiology* / Q000382:microbiology; D008296:Malaysia; D008875:Middle Aged