RT Journal Article SR Electronic T1 Content Usage and the Most Frequently Read Articles in 2009 JF The Journal of the American Board of Family Medicine JO J Am Board Fam Med FD American Board of Family Medicine SP 280 OP 282 DO 10.3122/jabfm.2010.03.100060 VO 23 IS 3 A1 Phillip Lupo A1 Anne Victoria Neale A1 Marjorie A. Bowman YR 2010 UL http://www.jabfm.org/content/23/3/280.abstract AB