TY - RPRT TI - Is Chordin a morphogen? AU - J Hama AU - D C Weinstein PY - 2001 DO - 10.1002/1521-1878(200102)23:2<121::aid-bies1018>3.0.co;2-r UR - https://pubmed.ncbi.nlm.nih.gov/11169584/ ID - 11169584 ER -