Intradermal injections of equine allogeneic umbilical cord-derived mesenchymal stem cells are well tolerated and do not elicit immediate or delayed hypersensitivity reactions. - Carrade, Danielle D.; Affolter, Verena K.; Outerbridge, Catherine A.; Watson, Johanna L.; Galuppo, Larry D.; Buerchler, Sabine; Kumar, Vijay; Walker, Naomi J.; Borjesson, Dori L. (Cytotherapy (Taylor & Francis Ltd), 2011)