Obstructive apnea hypopnea index:NRat:Stdy:^Patient:Qn
obstructive apnea hypopnea index:nrat:stdy:^patient:qn
Obstructive apnea hypopnea index:NRat:Stdy:^Patient:Qn
obstructive apnea hypopnea index:nrat:stdy:^patient:qn