Bergeron N, Al-Saiegh S, Ip EJ An Analysis of California Pharmacy and Medical Students' Dietary and Lifestyle Practices. Am J Pharm Educ. 2017 Oct;81(8):5956. doi: 10.5688/ajpe5956.
Bleich SN, Bennett WL, Gudzune KA, Cooper LA Impact of physician BMI on obesity care and beliefs. Obesity (Silver Spring). 2012 May;20(5):999-1005. doi: 10.1038/oby.2011.402. Epub 2012 Jan 19.
Dayoub E, Jena AB Chronic Disease Prevalence and Healthy Lifestyle Behaviors Among US Health Care Professionals. Mayo Clin Proc. 2015 Dec;90(12):1659-62. doi: 10.1016/j.mayocp.2015.08.002. Epub 2015 Oct 5.
Esselstyn CB Jr, Ellis SG, Medendorp SV, Crowe TD A strategy to arrest and reverse coronary artery disease: a 5-year longitudinal study of a single physician's practice. J Fam Pract. 1995 Dec;41(6):560-8.
Esselstyn CB Jr Updating a 12-year experience with arrest and reversal therapy for coronary heart disease (an overdue requiem for palliative cardiology). Am J Cardiol. 1999 Aug 1;84(3):339-41, A8.
Friedewald WT, Levy RI, Fredrickson DS Estimation of the concentration of low-density lipoprotein cholesterol in plasma, without use of the preparative ultracentrifuge. Clin Chem. 1972 Jun;18(6):499-502.
Luckhaupt SE, Cohen MA, Li J, Calvert GM Prevalence of obesity among U.S. workers and associations with occupational factors. Am J Prev Med. 2014 Mar;46(3):237-48. doi: 10.1016/j.amepre.2013.11.002.
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
