RT Journal Article SR Electronic T1 PREGNANCY TESTING KITS JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 208 OP 208 VO 26 IS 164 A1 E. M. Rosser YR 1976 UL http://bjgp.org/content/26/164/208.2.abstract AB