えすTAP てぃうえうぴい細胞 さいぼうではありませんでした
esutiueu pii saibōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of STAP細胞

1. Was not stem cells.; Was not iPS cells.

Past/Perfective
Negative
Polite
Formal Register
Biology