TY - JOUR T1 - Age-sex registers JF - The Journal of the Royal College of General Practitioners JO - J R Coll Gen Pract SP - 515 LP - 517 VL - 27 IS - 182 A2 - , Y1 - 1977/09/01 UR - http://bjgp.org/content/27/182/515.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -