机构:
Univ Calif San Diego, Div Pulm Crit Care & Sleep Med, La Jolla, CA 92093 USA
Brigham & Womens Hosp, Div Sleep Med, Sleep Disorders Res Program, Boston, MA 02115 USA
Harvard Univ, Sch Med, Boston, MA USAEPE, Ctr Hosp Lisboa Norte, Serv Pneumol, Lisbon, Portugal