http://news.health.com/2013/01/16/6-tips-for-training-for-your-first-half-marathon/
http://www.mayoclinic.com/health/fitness/MY00396/DSECTION=stretching-and-flexibility
http://libblog.hope.edu/
http://fathersforlife.org/fv/DV_news_letter_980130.htm
http://thefatherlessgeneration.wordpress.com/statistics/
www.martinlutherking.org
http://parentingsquad.com/what-causes-autism
http://www.immigrationcounters.com
www.answers.com/topic/mosquito-6
http://bensguide.gpo.gov
www.families.org
www.gatt.org
http://147.129.226.1/library/research/AIDSFACTS.htm
www.cmpharm.ucsf.edu/cohen/research/pages/genomics.html
Research and Documentation Online - Diana Hacker