Sept. 24, 2019 update: After LifeSiteNews published this story, David Daleiden testified on September 13 that he found a 2012 Stanford study published in Circulation which states: “In brief, human fetal hearts (StemExpress, Diamond Springs, CA) were perfused using a Langendorff apparatus…” Stem cell expert Dr. Theresa Deisher testified September 18, the last day of the hearing, that in order to be used in research and on a Langendorff apparatus, a human fetal heart “has to be beating" when harvested from the baby. The heart must then “be arrested in a relaxed position” by perfusing it with a potassium solution...