TY - RPRT TI - VACTERL as primary, polytopic developmental field defects. AU - M L Martínez-Frías AU - J L Frías PY - 1999 DO - 10.1002/(sici)1096-8628(19990305)83:1<13::aid-ajmg4>3.3.co;2-o UR - https://pubmed.ncbi.nlm.nih.gov/10076879/ ID - 10076879 ER -