using a highly sensitive and specific , peroxidase-antiperoxidase immunocytochemical procedure , 1,25 ( oh ) 2d3-induced cabp in the organ-cultured duodenum was found only in the cytoplasm of absorptive cells , corresponding to its localization in rachitic chick duodenal cells after a single injection of 1,25 ( oh ) 2d3 in vivo .
C0010834
cytoplasm
C0007634
cells