American Medical Association (AMA)

http://www.ama-assn.org/...

American Society of Mechanical Engineers (ASME)

http://www.asme.org/

Biomedical Engineering Society (BMES)

http://www.bmes.org/

Healthcare Information and Management Systems Society (HIMSS)

http://www.himss.org/ASP/index.asp...

Institute of Electrical and Electronics Engineer (IEEE)

http://www.ieee.org/portal/site...

Society for Biological Engineering (SBE)

http://www.aiche.org/SBE/...