経皮 けいひ毒性 どくせいではありませんでした
keihidokuseidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 経皮毒性

1. Was not percutaneous toxicity.; Was not dermal toxicity.

Past/Perfective
Negative
Polite
Formal Register
Medicine