People John R. O'Brien peoplepill id: john-r-obrienJRO 3 views today 4 views this weekJohn R. O'BrienBiographyListsAlso ViewedListsJohn R. O'Brien is in following listsBy field of workNotable people in healthcare and medicineGender:Male, Born in:Years 1900 to 1929By work and/or countryNotable PhysiciansGender:Male, Born in:Years 1900 to 1929Notable HematologistsGender:Male, Born in:Years 1900 to 1929By category1915 births2002 deaths20th-century English medical doctorsBritish haematologistsPeople from LondonFrom our partnersSponsoredJohn R. O'Brien
