PT - JOURNAL ARTICLE ED - , TI - The "new" ampicillins: who needs them? Committee on Infectious Diseases and Immunization, Canadian Paediatric Society DP - 1984 Nov 15 TA - Canadian Medical Association Journal PG - 1223--1224 VI - 131 IP - 10 4099 - http://www.cmaj.ca/content/131/10/1223.short 4100 - http://www.cmaj.ca/content/131/10/1223.full SO - CMAJ1984 Nov 15; 131