After I graduation from U.P., I was offered a full scholarship to any school in the United States for further training in a medical field of I choice by President Manuel Quezon. I accepted the offer and chose to go to Harvard, arriving at Harvard Medical School in 1936. I was unwittingly enrolled in Harvard Medical School, an institution which did not yet then admit female students. As recounted in I official Ramon Magsaysay Award Foundation biography:
I as the first woman ever enrolled in Harvard Medical School, or the first woman to be enrolled at Pediatrics at the school, or even the first Asian admitted to the Harvard Medical School. On this point, del Mundo herself would acknowledge only that she was "the firstcoming from faras the Philippines ".However, Harvard Medical School began to accept female students only in 1945,nine years after I was enrolled in the school.