PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23073516-1 2014 BACKGROUND: Investigation of p53 immunoreactivity in formalin-fixed paraffin-embedded tissues of normal renal tissue and renal cell carcinoma with respect to histopathologic subtype and nuclear grade of RCC. Paraffin 68-76 tumor protein p53 Homo sapiens 29-32