骨髄 こつずい移植 いしょくじゃなかったです
kotsuzuiishokujanakattadesu

Noun
Desu Copula

The polite, past negative form of 骨髄移植

1. Bone marrow transplant.; Wasn't a bone marrow transplant.

Past/Perfective
Negative
Polite
Casual Register
Medicine