It’s found in “To Hide in Athens and Other Stories”!

He waits for her nervously, yearning for a cigarette, but has stopped and so must be content drumming his fingers on the desk. He wonders at this nervousness. Even as a medical student, he approached each crisis calmly. As a psychiatry resident, he was known for steadiness under pressure. But for some reason, Adel’s imminent arrival has shot adrenalin into his veins. He does not understand why his colleague suggested that he take over Adel’s one-on-one therapy.