Brueton, V; Stenning, SP; Stevenson, F; Tierney, J; Rait, G; (2017) Best practice guidance for the use of strategies improved retention in randomised trials developed from two consensus workshops. Journal of Clinical Epidemiology 10.1016/j.jclinepi.2017.05.010 . (In press). Green open access
http://ift.tt/2r0txQs
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου