A Realistic Validation Study of a New Nitrogen Multiple-Breath Washout SystemFlorian Singer, Per Gustafsson, Birgitta Houltz et al.|PLoS ONE|2012Cited by 103
Clinical characteristics of adult asthma associated with small airway dysfunctionSanna Kjellberg, Per Gustafsson, Birgitta Houltz et al.|Respiratory Medicine|2016Cited by 72
Tidal N2 washout ventilation inhomogeneity indices in a reference population aged 7-70 yearsBirgitta Houltz, Per Gustafsson, Kent Green et al.|European Respiratory Journal|2012Cited by 38
Slow and fast lung compartments in cystic fibrosis measured by nitrogen multiple-breath washoutPer Gustafsson, Birgitta Houltz, Paul D. Robinson et al.|Journal of Applied Physiology|2014Cited by 31
Impaired peripheral airway function in adults following repair of esophageal atresiaVladimir Gatzinsky, Per Gustafsson, Göran Wennergren et al.|Journal of Pediatric Surgery|2014Cited by 21