Dr. McKay, University of Cincinnati
- http://www.drmckay.com/
- Primarily a commercial site, with some useful supportive educational material. Offers courses on lung function testing, respiratory protection and fit testing workshop, plus consultancy services.
OccNet
- http://www.health-alliance.com/occnet
- A provider of occupational health services with six convenient locations serving tri-state employers. Services promote safe, productive work environments, prevent injuries, and help businesses comply with government regulations.