RT Journal Article SR Electronic T1 Surrogate endpoints in global health research: still searching for killer apps and silver bullets? JF BMJ Global Health FD BMJ Publishing Group Ltd SP e000755 DO 10.1136/bmjgh-2018-000755 VO 3 IS 2 A1 Madhukar Pai A1 Samuel G Schumacher A1 Seye Abimbola YR 2018 UL http://gh.bmj.com/content/3/2/e000755.abstract AB