TY - RPRT TI - SONIC HEDGEHOG mutations causing human holoprosencephaly impair neural patterning activity. AU - Can Schell-Apacik AU - Mariel Rivero AU - Jessica L Knepper AU - Erich Roessler AU - Maximilian Muenke AU - Jeffrey E Ming PY - 2003 DO - 10.1007/s00439-003-0950-4 UR - https://pubmed.ncbi.nlm.nih.gov/12709790/ ID - 12709790 ER -