PT - JOURNAL ARTICLE ED - , TI - Corrigendum DP - 1990 Dec 01 TA - British Journal of General Practice PG - 522--522 VI - 40 IP - 341 4099 - http://bjgp.org/content/40/341/522.4.short 4100 - http://bjgp.org/content/40/341/522.4.full SO - Br J Gen Pract1990 Dec 01; 40