The metabolism of iodine‐123 labelled 3‐(5‐cyclopropyl‐1,2,4‐oxadiazo‐3‐yl)‐7‐iodo‐5,6‐dihydro‐5‐methyl‐6‐oxo‐4H‐imidazo[1,5‐a][1,4]benzodiazepine (NNC 13–8241) measured in human plasma is only minor