Groeben, Harald, 		Schulze, Laura, 		Brunkhorst, Violeta, 		Alesina, Piero F., AND 		Walz, Martin K..
" Catecholamine Concentrations during and after Retroperitoneoscopic Adrenalectomies in Surgeon, Anaesthetist and Patients – how is physiological stress different from pathophysiological stress?" <em>Medical Research Archives</em> [Online], Volume 9 Number 4 (12 April 2021)