The "expansion pack" has been tested ... in mice! https://www.cell.com/cell-stem-cell/pdf/S1934-5909(13)00007-6.pdf https://www.cell.com/cell-stem-cell/pdf/S193

The "expansion pack" has been tested ... in mice! https://www.cell.com/cell-stem-cell/pdf/S1934-5909(13)00007-6.pdf https://www.cell.com/cell-stem-cell/pdf/S1934-5909(13)00007-... Could it work in larger mammals?