death_date birth_place name birth_date known_for article_title birth_name occupation
september 11 , 2012 langfuhr , poland leopold koss october 2 , 1920 cytopathology research leopold koss
 leopold kon professor
leopold koss

leopold george koss -lrb- born leopold kon -rrb- -lrb- october 2 , 1920 -- september 11 , 2012 -rrb- was a professor at the albert einstein college of medicine .
he has been referred to as `` one of the founding fathers for the field of cytopathology '' .
