title: Respirator wearer's strain: a complex problem.
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D011482:Protective Devices; D012134:Respiratory Protective Devices; D013312:Stress, Physiological / Q000209:etiology*; D013315:Stress, Psychological / Q000209:etiology; D014938:Work Capacity Evaluation