However , he died suddenly of a heart attack in November 1974 , while making a public speech to the Royal College of Physicians in Dublin .
He died suddenly of a heart attack in November 1974 , while making a public speech to the Royal College of Physicians in Dublin .
He died suddenly of a heart attack in November 1974 , while making a public speech to the Royal College of Physicians in Dublin .
文章をもっと簡単に書き直してください: However , he died suddenly of a heart attack in November 1974 , while making a public speech to the Royal College of Physicians in Dublin . 出力: