https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1214-0
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1232-y
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1229-6
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1230-0
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1221-1
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1227-8
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1218-9
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1217-x
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1231-z
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1222-0
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1228-7
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1213-1
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1219-8
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1220-2
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1226-9
https://stemcellres.biomedcentral.com/articles/10.1186/s13287-019-1225-x