My father, Daniel Catovsky, who has died aged 85, was a specialist in the study of adult blood cancers and helped to develop diagnostic and treatment programmes for chronic lymphocytic leukaemia as well as rarer conditions such as prolymphocytic and hairy cell leukaemia.
Daniel was born in Buenos Aires, Argentina, to Felix Catovsky, a Bessarabian Jew who had emigrated to Argentina and worked as a journalist and author, and Ana (nee Kabanchick), a homemaker whose roots were also in Bessarabia (now modern-day Moldova).
