Assertion: amenorrhea | /r/HasProperty | menstrual periods
Facets:
value: for 12 consecutive months
type: TEMPORAL
Source sentences:
text: Amenorrhea that is not related to pregnancy or the menopausal transition (time when there has been no menstrual periods for 12 consecutive months and no other biological or physiological cause can be identified, and the female is at the end of her biological-determined child bearing years) should be further investigated to rule out serious conditions that may result in amenorrhea.