Source: https://www.washingtonpost.com/lifestyle/travel/trip-insurance-with-a-preexisting-condition-refund-on-an-nonrefundable-ticket-whats-possible-might-surprise-you/2018/03/29/b8a5ef12-2b8f-11e8-8ad6-fbc50284fce8_story.html?utm_term=.705a80e788ff