Low-dose progestin-releasing contraceptives are associated with a higher pain threshold in healthy women Manuela Menezes Máximo, M.D., Patrícia Silveira Silva, M.D., Carolina Sales Vieira, Ph.D., Thaís Mangetti Gonçalvez, B.S., Júlio Cesar Rosa-e-Silva, Ph.D., Francisco José Candido-dos-Reis, Ph.D., Antonio Alberto Nogueira, Ph.D., Omero Benedicto Poli-Neto, Ph.D. Fertility and Sterility Volume 104, Issue 5, Pages 1182-1189 (November 2015) DOI: 10.1016/j.fertnstert.2015.07.1165 Copyright © 2015 American Society for Reproductive Medicine Terms and Conditions
Figure 1 Flow diagram of the study design. Cu-IUD = copper intrauterine device; ETG = etonogestrel; NET = norethisterone enantate; EV = E2 valerate. Other abbreviations defined in article text. Fertility and Sterility 2015 104, 1182-1189DOI: (10.1016/j.fertnstert.2015.07.1165) Copyright © 2015 American Society for Reproductive Medicine Terms and Conditions