RT Journal Article SR Electronic T1 Resource Manual for Guidelines for Exercise Testing and Prescription JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 244 OP 244 DO 10.1136/bjsm.25.4.244 VO 25 IS 4 A1 Sharp, N. C. Craig YR 1991 UL http://bjsm.bmj.com/content/25/4/244.1.abstract AB