Fig. 1From: Optimization of sniff nasal inspiratory pressure (SNIP) measurement methodology in healthy subjectsSubject recruitment and study design. RNLO: right nostril, left occluded; RNLNO: right nostril, left non-occluded; LNRO: left nostril, right occluded; LNRNO: left nostril, right non-occludedBack to article page