Nicolaas Marinus Josephus Jitta studied medicine in Leiden, where he sat for his medical finals on 2 October 1884. He obtained his doctoral degree on 9 July 1885 in Amsterdam on his thesis 'On experimental haemoglobinuria and haemoglobinaemia'. Nicolaas Marinus Josephus Jitta specialised to be an ophthalmologist and he settled in Amsterdam, where he practised medicine in the Institute for Ophthalm…