RT Journal Article
SR Electronic
T1 Sports, Medicine and Health
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 111
OP 111
DO 10.1136/bjsm.25.2.111
VO 25
IS 2
A1 Sperryn, P. N.
YR 1991
UL http://bjsm.bmj.com/content/25/2/111.1.abstract
AB