1. Effectiveness of ward based opportunistic immunisation policy. Issue 6773 (16th February 1991) Authors: Reeve, H; Chew, C; Waller-Wilkinson, I Journal: BMJ Issue: Volume 302:Issue 6773(1991) Page Start: 412 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗