TY - RPRT TI - 25-Hydroxycholecalciferol: specific binding by rachitic tissue extracts. AU - J G Haddad AU - S J Birge PY - 1971 DO - 10.1016/0006-291x(71)90413-x UR - https://pubmed.ncbi.nlm.nih.gov/4330141/ ID - 4330141 ER -