title: The lure of stem-cell lines.
mesh_terms: D000328:Adult; D002454:Cell Differentiation; D002460:Cell Line; D002681:China; D002986:Clinical Trials as Topic / Q000639:trends; D033041:Embryo Research / Q000191:economics / Q000941:ethics* / Q000331:legislation & jurisprudence*; D004622:Embryo, Mammalian / Q000166:cytology; D005060:Europe; D006801:Humans; D012846:Singapore; D013234:Stem Cells / Q000166:cytology*; D014481:United States