TED】レベッカ・ブラヒマン。うつ病とPTSDを予防できる新しいクラスの薬 (A new class of drug that could prevent depression and PTSD｜レベッカ・ブラヒマン) (【TED】Rebecca Brachman: A new class of drug that could prevent depression and PTSD (A new class of drug that could prevent depression and PTSD