Voluntary health insurance on the national scene; The United Mine Workers Health Program.
D006801:Humans; D007221:Industry; D007341:Insurance; D007348:Insurance, Health; D008906:Mining; D009784:Occupational Diseases; D016272:Occupational Health; D009790:Occupations; D014942:Workers' Compensation
INDUSTRY AND OCCUPATIONS; MINES AND MINERS; WORKMAN'S COMPENSATION AND INSURANCE