RT Journal Article SR Electronic T1 Contraception: satisfaction with the method, effects on sleep and psychological well-being JF BMJ Sexual & Reproductive Health JO BMJ Sex Reprod Health FD British Medical Journal Publishing Group SP 169 OP 171 DO 10.1136/bmjsrh-2018-200107 VO 45 IS 2 A1 Elena Toffol A1 Timo Partonen A1 Oskari Heikinheimo A1 Satu P Suhonen YR 2019 UL http://jfprhc.bmj.com/content/45/2/169.1.abstract AB