Alfredo Pavlovsky
Alfredo Pavlovsky ( 24 November 1907 – 26 April 1984 ) was an Argentinian physician who discovered that haemophilia has two types ( A and B ) . 
<triplet> Alfredo Pavlovsky <subj> 24 November 1907 <obj> date of birth <subj> 26 April 1984 <obj> date of death