Assertion: viagra | /r/CapableOf | treat pulmonary hypertension
Facets:
Source sentences:
text: In Canada, Pfizer's patent 2,324,324 for Revatio (sildenafil used to treat pulmonary hypertension) was found invalid by the Federal Court in June 2010, on an application by Ratiopharm Inc.
text: Bermejo said Viagra is often used "off-label" to help treat pulmonary hypertension, even though it's not approved for such use.
text: In Canada, Pfizer's patent 2,324,324 for Revatio (sildenafil used to treat pulmonary hypertension) was found invalid by the Federal Court in June 2010, on an application by Ratiopharm Inc.