TORONTO, Feb. 07, 2020 (GLOBE NEWSWIRE) — David Rosenkrantz (“Acquiror”) announces that he has filed an early warning report under National Instrument 62-103 in connection with the acquisition of 1,579,000 voting common shares (“Shares”) and 789,500 Share purchase warrants (“Warrants”) of Aurora Spine Corporation (the “Company”) for total consideration of USD$300,010. On February 6, 2020, …