A study of workload in a mining area practice.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004739:England; D005260:Female; D006123:Group Practice / Q000706:statistics & numerical data*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D008906:Mining; D009787:Occupational Medicine; D014937:Work