Palate implants for obstructive sleep apnea: multi-institution, randomized, placebo-controlled study.
D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019736:Prostheses and Implants; D011788:Quality of Life; D020181:Sleep Apnea, Obstructive / Q000601:surgery*