Authors: M M Roberts; F E Alexander; T J Anderson; U Chetty; P T Donnan; P Forrest; W Hepburn; A Huggins; A E Kirkpatrick; J Lamb Journal: Lancet Date: 1990-02-03 Impact factor: 79.321
Authors: J D Otten; J A van Dijck; P G Peer; H Straatman; A L Verbeek; M Mravunac; J H Hendriks; R Holland Journal: J Epidemiol Community Health Date: 1996-06 Impact factor: 3.710