Assertion: vaccine's dose | /r/HasProperty | given at 12 through 15 months of age
Facets:
Source sentences:
text: (The first dose should be given at 12 through 15 months of age and the second dose at 4 through 6 years of age.
text: Infants who get one dose of MMR vaccine before their first birthday should get two more doses according to the routinely recommended schedule (first dose should be given at 12 through 15 months of age and the second dose at 4 through 6 years of age.