RT Journal Article
SR Electronic
T1 Obstetrics in General Practice
JF The Journal of the College of General Practitioners
JO J Coll Gen Pract
FD British Journal of General Practice
SP 542
OP 551
VO 4
IS 4
A1 McGregor, R. M.
A1 Martin, L. V. H.
YR 1961
UL http://bjgp.org/content/4/4/542.abstract
AB