combined hormonal contraception
... that the different types of combined hormonal contraception include a pill, a patch, an injection, and a vaginal ring?
... that the different types of <b id="mwAnY"><a href="./Combined_hormonal_contraception" id="mwAnc" rel="mw:WikiLink" title="Combined hormonal contraception">combined hormonal contraception</a></b> include a <a href="./Combined_oral_contraceptive_pill" id="mwAng" rel="mw:WikiLink" title="Combined oral contraceptive pill">pill</a>, a <a href="./Contraceptive_patch" id="mwAnk" rel="mw:WikiLink" title="Contraceptive patch">patch</a>, an <a href="./Combined_injectable_birth_control" id="mwAno" rel="mw:WikiLink" title="Combined injectable birth control">injection</a>, and a <a href="./Contraceptive_vaginal_ring" id="mwAns" rel="mw:WikiLink" title="Contraceptive vaginal ring">vaginal ring</a>?