Complex sentence: Jorgensen intended to go to Sweden, where the only doctors in the world performing this surgery were located at that time but during a stopover in Copenhagen to visit relatives, met Dr. Christian Hamburger, a Danish endocrinologist and specialist in rehabilitative hormonal therapy.
Split into simpler sentences: Jorgensen intended to go to Sweden, where the only doctors in the world performing this surgery were located at that time. However, during a stopover in Copenhagen to visit relatives, Jorgensen met Dr. Christian Hamburger, a Danish endocrinologist and specialist in rehabilitative hormonal therapy.