RT Journal Article SR Electronic T1 Online public health education growing in popularity in U.S.: More students forgoing classrooms JF The Nation's Health JO Nations Health FD American Public Health Association SP 1 OP 14 VO 42 IS 6 A1 Krisberg, Kim YR 2012 UL http://www.thenationshealth.org/content/42/6/1.3.abstract AB