Value of measuring diurnal peak flow variability in the recognition of asthma: a study in general practice
HA Thiadens, GH De Bock, FW Dekker, JA Huysman, JC Van Houwelingen, MP Springer, DS Postma
European Respiratory Journal 1998 12: 842-847; DOI: 10.1183/09031936.98.12040842