TY - RPRT TI - Embryonic stem cell models of development. AU - K S O'Shea PY - 1999 DO - 10.1002/(sici)1097-0185(19990215)257:1<32::aid-ar6>3.0.co;2-2 UR - https://pubmed.ncbi.nlm.nih.gov/10333401/ ID - 10333401 ER -