PT - JOURNAL ARTICLE AU - KF Kerrebijn TI - Defining and describing airways obstruction in children AID - 10.1183/09031936.93.03091083 DP - 1990 Oct 01 TA - European Respiratory Journal PG - 1083--1084 VI - 3 IP - 9 4099 - http://erj.ersjournals.com/content/3/9/1083.short 4100 - http://erj.ersjournals.com/content/3/9/1083.full SO - Eur Respir J1990 Oct 01; 3