PT - JOURNAL ARTICLE AU - Paul L.P. Brand AU - André Schultz TI - To track or not to track: wheeze phenotypes in preschool children AID - 10.1183/13993003.00042-2018 DP - 2018 Apr 01 TA - European Respiratory Journal PG - 1800042 VI - 51 IP - 4 4099 - http://erj.ersjournals.com/content/51/4/1800042.short 4100 - http://erj.ersjournals.com/content/51/4/1800042.full SO - Eur Respir J2018 Apr 01; 51