Authors: J T Muldoon; L A Wintermeyer; J A Eure; L Fuortes; J A Merchant; S F Van Lier; T B Richards Journal: Am J Public Health Date: 1987-08 Impact factor: 9.308
Authors: Dick Spreeuwers; Angela G E M de Boer; Jos H A M Verbeek; Frank J H van Dijk Journal: BMC Health Serv Res Date: 2009-10-23 Impact factor: 2.655