Baddog
As of now, there have been just a few studies by independent companies/school/state sponsored. While these studies show good controls, they only test 1 or a couple e-cigs thus results should not be generalized to any e-cigarette as there are many different types now. Your doctor should look at the chemical list as well for e-cigarettes which can be found on wikipedia under e-cigs. Let me know what your doc says!
Links: Because ECF won't let me post links, you can find the web pages by copying and pasting these into google. The last one is the FDA study.
good luck
E-cigarettes can help kick the ....-ET Cetera-News By Industry-News-The Economic Times
Debate: Why is the FDA Trying to Ban a Safer Cigarette? - AOL News
Scoop: No E- Cigarettes For Australasia
Electronic cigarette - Wikipedia, the free encyclopedia
Study Reveals a Need to Evaluate and Regulate 'Electronic Cigarettes' – VCU News Center
Evaluating the Acute Effects of Electronic Nicotine Delivery
devices Marketed to Smokers. - Full Text View - ClinicalTrials. gov
FDA and Public Health Experts Warn About Electronic Cigarettes