PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15630525-7 2004 Although CD34 was absent in the tumor cells of all the tumors studied (0 of 36), CD34 immunohistochemistry nicely demonstrated the evenly distributed septal capillaries characteristic of CCSK in all 9 cases of this tumor. ccsk 187-191 CD34 molecule Homo sapiens 81-85