[Studies on occupational asthma. 1. Result of an investigation of asthma cases in a hair-pencil manufacturing area].
D000828:Animal Population Groups; D000818:Animals; D001249:Asthma / Q000453:epidemiology*; D006197:Hair; D006801:Humans; D007564:Japan; D008403:Mass Screening; D009784:Occupational Diseases / Q000453:epidemiology*; D012882:Skin Tests