 She became a specialist in infertility treatment at Mount Sinai Hospital, New York and eventually moved with her daughter to live in Herzliya, Israel, where she died.Gisella Perl was born and grew up in Máramarossziget, Sighetu Marmaţiei, then part of Hungary, which after the Trianon peace treaty of 4 June 1920, became part of Romania.In 1923, when she was 16, she graduated from secondary-school first in her class, the only woman and the only Jew.