乳幼児にゅうようじ突然とつぜん症候しょうこうぐんではありませんでした
nyū yōji totsuzen shi shōkōgundewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 乳幼児突然死症候群

1. Was not Sudden Infant Death Syndrome.; Was not SIDS.

Past/Perfective
Negative
Polite
Formal Register
Medicine