Compliance challenges in a Black Lung Clinic.
D000368:Aged; D000874:Anthracosilicosis / Q000523:psychology* / Q000628:therapy; D006126:Group Processes; D006699:Home Care Services; D006801:Humans; D007196:Indiana; D008297:Male; D008875:Middle Aged; D010044:Outpatient Clinics, Hospital; D010349:Patient Compliance; D010353:Patient Education as Topic; D012648:Self Care