Assertion: contraceptive's progesterone | /r/HasProperty | marketed as the progestasert system
Facets:
value: in 1976
type: TEMPORAL
Source sentences:
text: With knowledge of Scommegna's work, a Finnish doctor, Jouni Valtteri Tapani Luukkainen, created the 'T'-shaped IUD that released progesterone, marketed as the Progestasert System in 1976.