Consultation rates and incidence of intercurrent morbidity among patients with chronic disease in general practice.

Schellevis, F.G., Lisdonk, E.H. van de, Velden, J. van der, Hoogbergen, S.H.J.L., Eijk, J.T.M. van, Weel, C. van. Consultation rates and incidence of intercurrent morbidity among patients with chronic disease in general practice. British Journal of General Practice: 1994, 44(383), 259-262