Herdis von Magnus
Herdis von Magnus ( 23 September 1912 – 15 March 1992 ) was a Danish polio expert . 
<triplet> Herdis von Magnus <subj> 23 September 1912 <obj> date of birth <subj> 15 March 1992 <obj> date of death <subj> polio <obj> field of work