RT Journal Article
SR Electronic
T1 Practice Index
JF The Journal of the College of General Practitioners
JO J Coll Gen Pract
FD British Journal of General Practice
SP 225
OP 232
VO 6
IS 2
A1 P. A. Walford
YR 1963
UL http://bjgp.org/content/6/2/225.abstract
AB