Chronic respiratory disease in a random sample of men and women in the Rhondda Fach in 1958.
D003032:Coal Mining; D004194:Disease; D005260:Female; D006801:Humans; D008297:Male; D012120:Respiration Disorders; D012137:Respiratory System; D012140:Respiratory Tract Diseases
COAL MINING; RESPIRATORY SYSTEM/diseases