TY - JOUR T1 - Notes JF - The Journal of the College of General Practitioners JO - J Coll Gen Pract SP - 213 LP - 213 VL - 11 IS - 2 AU - F. W. Blacklay Y1 - 1966/03/01 UR - http://bjgp.org/content/11/2/213.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -