Discrepancy between the guidelines and practice by family physicians in treating adults with an exacerbation of asthma or chronic obstructive pulmonary disease. (Article in Dutch.) Nederlands Tijdschrift voor Geneeskunde - Smeele, I; van Schayck, CP; van den Bosch, WJ; van den Hoogen, HJ; Muris, JW; Grol, RP (1998)