PT - JOURNAL ARTICLE AU - Cookson, M. I. TI - BRITISH BIRTHS 1970 VOL. 2: OBSTETRIC CARE DP - 1979 Jul 01 TA - The Journal of the Royal College of General Practitioners PG - 438--439 VI - 29 IP - 204 4099 - http://bjgp.org/content/29/204/438.2.short 4100 - http://bjgp.org/content/29/204/438.2.full SO - J R Coll Gen Pract1979 Jul 01; 29