Complex sentence: After studying neurosurgery, he is accepted as a resident at John Hopkins Hospital, where he is faced with a dilemma that could end his career; operate on a dying man without permission and with no one around to supervise, or let him die.
Split into simpler sentences: After studying neurosurgery, he is accepted as a resident at John Hopkins Hospital, where he is faced with a dilemma that could end his career. It was operate a dying man without permission and with no one around to supervise, or let him die.