We have 2 health sites:
http://www.doctorwaynesuway.com
http://www.privatemdlabs.com

Recent changes have been made to the Dentist in Marietta http://www.doctorwaynesuway.com, rules.

PR doesn't concern us anymore, since it doesn't work the same as it did last year for Google.
Because search engines have very strict relevance guidelines, only dentist-related links (preferably within the Metro Atlanta area) are qualified.

Another good site of ours - Private MD (Online blood testing) has a qualified link resource page (it's pr0):
Private MD Health Links

Please let me know if it fits well on your site.