PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3525983-2 1986 To determine whether this phenomenon occurs also in vivo, 244 routine paraffin-embedded tumors including 32 SCLC and 79 non-SCLC (NSCLC) lung cancers were studied for expression of beta 2-microglobulin (beta 2m) by an avidin-biotin coupled immunoperoxidase technique. avidin-biotin 218-231 beta-2-microglobulin Homo sapiens 203-210