TY - JOUR A1 - Bertrand, J.T. A1 - Sullivan, T.M. A1 - Knowles, E.A. A1 - Zeeshan, M.F. A1 - Shelton, J.D. T1 - Contraceptive method skew and shifts in method mix in low- and middle-income countries Y1 - 2014 DO - 10.1363/4014414 VL - 40 IS - 3 ER -