title: A tribute to Philip Quanjer.
authors.affiliation: Department of Pediatrics, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
authors.forename: Peter
authors.initials: P
authors.lastname: Merkus
mesh_terms: D000402:Airway Obstruction / Q000175:diagnosis*; D003661:Decision Support Techniques; D005260:Female; D006801:Humans; D008297:Male; D013147:Spirometry / Q000592:standards*