Johannes CB, Woods J, Crawford S, Cochran H, Tran D, Schuth B. Electronic versus paper instruments for daily data collection. Poster presented at the 2000 the American College of Epidemiology Annual Meeting; 2000. Atlanta, GA. [abstract] Ann Epidemiol. 2000 Oct 1; 10(7):457.
Feldman HA, Johannes CB, McKinlay JB, Longcope C. Low dehydroepiandrosterone sulfate and heart disease in middle-aged men: cross-sectional results from the Massachusetts Male Aging Study. Ann Epidemiol. 1998 May;8(4):218-28.