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The Centers for Disease Control and Prevention (CDC) is recognized as the lead federal agency in U.S.A. for providing credible information about safety and health.

Medline Search from PubMed is the National Library of Medicine's search service that provides access to over 10 million citations in MEDLINE, PreMEDLINE, and other related databases.

This site launched in May 1995 and contains the full text of all articles published in the weekly BMJ since January 1994. In addition, it contains material that is unique to the website. Currently access to the entire site is free.

The Swiss Federal Office of Public Health makes an essential contribution to prepare fact sheets to various topics, a.o. infectious diseases, and to offer services.

The American Academy for Anti-Aging Medicine develops, supports, and encourages educational and scientific programs concerned with the advancement of scientific knowledge and application of anti-aging techniques for the benefit of the community and the common good of all mankind.

Swiss National Foundation for organ donation and transplantation