Council on Ethical and Judicial Affairs of the American Medical Association.Gifts to physicians from industry.J Am Med Assoc1991;
265:
501
2.
KesslerDADrug promotion and scientific exchange. The role of the clinical investigator.N Engl J Med1991;
325:
201–3
3.
European Federation of Pharmaceutical Industries' Associations.EC Directive on the advertising of medicinal products: a reading of the current texts (a note by the legal department).
EFPIA,
1992
4.
United States Food and Drug Administration.Final guidance on industry-supported scientific and educational activities.
Federal Register,
Dec 8th 1997
5.
International Headache Society.Rules and guidelines for the organization of the IHS International Headache Congress (IHC).Cephalalgia1997;
17:
896–9