Authors: P R Tirimanna; J J Den Otter; C P Van Schayck; C L Van Herwaarden; H Folgering; C Van Weel Journal: Br J Gen Pract Date: 1996-01 Impact factor: 5.386
Authors: H A Thiadens; G H De Bock; J C Van Houwelingen; F W Dekker; M W De Waal; M P Springer; D S Postma Journal: Thorax Date: 1999-12 Impact factor: 9.139