لذلك فهم روبرت أنه من المرجح جدا أن يكون مرضاه يُعانون من الاكتئاب حتى بعد شفائهم من مرض السرطان، لأن الدواء المضاد للسرطان قد منع الخلايا العصبية الجديدة من التكوّن.
So by then, Robert had understood that very likely his patients were suffering from depression even after being cured of their cancer, because the cancer drug had stopped newborn neurons from being generated.