Misreporting contraceptive use and the association of peak study progestin levels with weight and BMI among women randomized to the progestin-only injectable contraceptives DMPA-IM and NET-EN

C Avenant, A.J. Bick, S.B. Skosana, S Dlamini, Y Balakrishna, JM Moliki, M Singata-Madliki, G.J. Hofmeyr, J Smit, M Beksinska, I Beesham, I Seocharan, J Batting, P Chen, K Storbeck, D Africander, J.P. Hapgood