こう気圧 きあつ酸素 さんそ治療 ちりょうじゃなかったです
kōkiatsusansochiryōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 高気圧酸素治療

1. High-pressure oxygen therapy wasn't.; It wasn't high-pressure oxygen therapy.

Past/Perfective
Negative
Polite
Casual Register
Medicine