PT - JOURNAL ARTICLE ED - , TI - Periodic health examination, 1992 update: 4. Prophylaxis for gonococcal and chlamydial ophthalmia neonatorum. Canadian Task Force on the Periodic Health Examination DP - 1992 Nov 15 TA - Canadian Medical Association Journal PG - 1449--1454 VI - 147 IP - 10 4099 - http://www.cmaj.ca/content/147/10/1449.short 4100 - http://www.cmaj.ca/content/147/10/1449.full SO - CMAJ1992 Nov 15; 147