PT - JOURNAL ARTICLE AU - Boonsarngsuk, Viboon AU - Suwatanapongched, Thitiporn TI - Puzzling Bronchial Trifurcation AID - 10.4187/respcare.01200 DP - 2011 Aug 01 TA - Respiratory Care PG - 1206--1208 VI - 56 IP - 8 4099 - http://rc.rcjournal.com/content/56/8/1206.short 4100 - http://rc.rcjournal.com/content/56/8/1206.full