Original sentence: Gross was head of the Spigelgrund childrens' psychiatric clinic for two years during WWII.The favorable outcomes he enjoyed at his two criminal trials may reflect that, since he was regularly used by the Austrian courts to provide psychological profiles of criminal defendants and to opine on their ability to stand trial (which examinations were revealed by a documentary to have been conducted at an average rate of twice a working day, shedding doubt upon their objectivity and the validity of the opinions expressed),that he perhaps received treatment that could be characterized as preferential or biased in his favor
Edited sentence: Gross was head of the Spigelgrund children's psychiatric clinic for two years during WWII.The favorable outcomes he enjoyed at his two criminal trials may reflect that, since he was regularly used by the Austrian courts to provide psychological profiles of criminal defendants and to opine on their ability to stand trial (which examinations were revealed by a documentary to have been conducted at an average rate of twice a working day, shedding doubt upon their objectivity and the validity of the opinions expressed), that he perhaps received treatment that could be characterized as preferential or biased in his favor