TY - JOUR T1 - Eleven peak flow meters: a clinical evaluation JF - European Respiratory Journal JO - Eur Respir J SP - 511 LP - 512 DO - 10.1183/09031936.98.12020511 VL - 12 IS - 2 AU - I Gregg Y1 - 1998/08/01 UR - http://erj.ersjournals.com/content/12/2/511.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -