- Harvard and the Brigham call for 31 retractions of cardiac stem cell research - STAT https://www.statnews.com/2018/10/14/harvard-brigham-retractions-stem-cell/?utm_content=buffer5009a&utm_medium=social&utm_source=facebook&utm_campaign=facebook_organic&fbclid=iwar1gk6bl7x9yt3klnef1pwxko-bzqsi8fhxt4ihguojr1w27simpga1zmgm 3 comments science