Assertion: viagra's use | /r/HasProperty | dunn
Facets:
Source sentences:
text: Because sildenafil causes vasodilation in the uterus, it is currently under study for various obstetric uses (Dunn 2016; Dunn 2017; Groom 2019; Maged 2018; Maher 2019; Pels 2017; Sharp 2018).