RT Journal Article SR Electronic T1 Extension of the HPV vaccine programme in England to include boys JF Drug and Therapeutics Bulletin JO Drug Ther Bull FD BMJ Publishing Group Ltd SP 133 OP 133 DO 10.1136/dtb.2019.000055 VO 57 IS 9 YR 2019 UL http://dtb.bmj.com/content/57/9/133.abstract AB