• chain
  • The first large swap was a 60 participant chain in 2012 that appeared on the front page of the New York Times and the second, even larger swap, included 70 participants and was completed in 2014. (wikipedia.org)
  • The Hopkins program, which was based out of the Johns Hopkins Hospital, led the industry in early innovations including the critical "Domino Chain" breakthrough which allowed Good Samaritan donors to start chains, dramatically increasing the number of pairs that could be matched in a swap compared to the loop approach that was used previously. (wikipedia.org)