I remember there where some heart researchers over a decade ago trying to inject some undifferentiated cells, which they called stem cells... appeared to be much unproven technology at that time.
This is perhaps a new overview about some unreproducible research of many scientific centres over decades, everybody appeared to be a stem cell researcher. I think the problem for the industry is known for all areas just that scientific results from universities are often wrong...
https://www.ncbi.nlm.nih.gov/pubmed/30778231