臍帯 さいたい けつ移植 いしょくじゃなかったです
saitaiketsuishokujanakattadesu

Noun
Desu Copula

The polite, past negative form of 臍帯血移植

1. Cord blood transplant wasn't.; It wasn't a cord blood transplant.

Past/Perfective
Negative
Polite
Casual Register