RT Journal Article SR Electronic T1 Performance testing new peak flow meters JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 261 OP 262 DO 10.1183/09031936.98.12020261 VO 12 IS 2 A1 Pedersen, OF A1 Miller, MR A1 van der Mark, TW YR 1998 UL http://erj.ersjournals.com/content/12/2/261.abstract AB