TY - RPRT TI - Proteolytic processing yields two secreted forms of sonic hedgehog. AU - D A Bumcrot AU - R Takada AU - A P McMahon PY - 1995 DO - 10.1128/mcb.15.4.2294 UR - https://pubmed.ncbi.nlm.nih.gov/7891723/ ID - 7891723 ER -