RT Journal Article
SR Electronic
T1 An I.U.C.D. record card.
JF The Journal of the Royal College of General Practitioners
JO J R Coll Gen Pract
FD British Journal of General Practice
SP 656
OP 657
VO 23
IS 134
A1 M. J. Bull
YR 1973
UL http://bjgp.org/content/23/134/656.abstract
AB