PT - JOURNAL ARTICLE AU - F. W. Blacklay TI - Notes DP - 1966 Mar 01 TA - The Journal of the College of General Practitioners PG - 213--213 VI - 11 IP - 2 4099 - http://bjgp.org/content/11/2/213.2.short 4100 - http://bjgp.org/content/11/2/213.2.full SO - J Coll Gen Pract1966 Mar 01; 11