Moumjid Nora, Callu Marie-France
Research Group in Health Economics and Networks in Cancer Care, Mixed Research Unit 5823, National Centre for Scientific Research, Centre Léon Bérard, 28 Rue Laënnec, 69008 Lyon, France.
BMJ. 2003 Sep 27;327(7417):734-5. doi: 10.1136/bmj.327.7417.734.