TY - JOUR T1 - Obstetrics JF - The Journal of the Royal College of General Practitioners JO - J R Coll Gen Pract SP - 246 LP - 246 VL - 19 IS - 93 A2 - , Y1 - 1970/04/01 UR - http://bjgp.org/content/19/93/246.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -