title: The lesser of two evils.
authors: School of Nursing, University of Pennsylvania, Philadelphia, PA 19104-4217, USA.
authors: Barbara
authors: B
authors: Riegel
authors: Amy M
authors: AM
authors: Sawyer
authors: Joseph
authors: J
authors: Libonati
mesh_terms: D005081:Exercise Therapy; D005260:Female; D006801:Humans; D008297:Male; D012890:Sleep; D020181:Sleep Apnea, Obstructive / Q000628:therapy*