David Littmann
David Littmann , M . D . , ( July 28 , 1906 – January 1 , 1981 ) was an American cardiologist born in Chelsea Massachusetts ( born to Ukrainian immigrants from Novogrod Wolyn aka Zwill Ukraine ( formally the Russian Empire ) , Issac Litman and Sadie Zewat Litman ) and Harvard Medical School professor and researcher . 
<triplet> David Littmann <subj> July 28, 1906 <obj> date of birth <subj> January 1, 1981 <obj> date of death