The yawn maneuver: prevention and treatment of postoperative pulmonary complications.
D001945:Breathing Exercises; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000517:prevention & control*; D008875:Middle Aged; D011183:Postoperative Complications / Q000517:prevention & control*; D012119:Respiration; D013147:Spirometry