RT Journal Article SR Electronic T1 HIV transmission risk during breast feeding was greatest during the early months of life JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 95 OP 95 DO 10.1136/ebm.5.3.95 VO 5 IS 3 YR 2000 UL http://ebm.bmj.com/content/5/3/95.abstract AB