RT Journal Article SR Electronic T1 Seeing Over One's Shoulder and Out of the Corner of One's Eye JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 64 OP 67 DO 10.3122/jabfm.2.1.64 VO 2 IS 1 A1 G. Gayle Stephens YR 1989 UL http://www.jabfm.org/content/2/1/64.abstract AB