In 2016, my then 90-year old father was hospitalized at Ellis for a severe illness, eventually diagnosed as anaplasmosis (a tic-borne illness). He nearly died. While some of the staff were convinced he would soon die due to his age and we should put him on hospice, the infectious disease doctor refused to give up. He assured us he would find the cause and treat my father. The doctor engaged my father in conversation to assess his mental state and just in case the nurses erred in their doagnostic tests, redid all diagnostic measurements himself. After several days, he verified the cause, administered the correct medicine and cured my father. That doctor's perseverance was an essential cause of my father's recovery. Many doctors would not work very hard to save a 90-year old man. (Time does not permit me to give details of how they saved him through two heart attacks a year of two before that.) - Oh and my dad just celebrated his 94th.