translation.en: And an especially important challenge that I've had to face is the great shortage of mental health professionals, such as psychiatrists and psychologists, particularly in the developing world.
translation.zh: 我所要面对的一个重要挑战就是 极度缺乏像精神病专家和心理学专家这类的 精神健康专家， 而这一现在在发展中国家尤为严重。