Quispe Calla Nirk Ericson, Vicetti Miguel Rodolfo D, Cherpes Thomas L
Department of Comparative Medicine, Stanford University School of Medicine, Stanford, California, USA;
J Fam Plann Reprod Health Care. 2017 Oct;43(4):342. doi: 10.1136/jfprhc-2017-101827. Epub 2017 Jul 29.