RT Journal Article SR Electronic T1 Questionnaire JF The British Edition of the Medical Letter on Drugs and Therapeutics FD BMJ Publishing Group Ltd SP 8 OP 8 DO 10.1136/dtb.s1-2.2.8-a VO s1-2 IS 2 YR 1963 UL http://dtb.bmj.com/content/s1-2/2/8.2.abstract AB We are most grateful to those subscribers who completed and returned our questionnaire. The information collected in this way will help us to be as useful as we can to readers.