PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23165797-7 2013 Interestingly, there was a trend toward longer time to progression after chemotherapy for tumors with the apoptosis-prone p53 variant R72 (P = .07), which was strongest with doxorubicin/ifosfamide-based regimens (P = .01). Ifosfamide 186-196 tumor protein p53 Homo sapiens 122-125 15736417-0 2004 Analysis of central regulatory pathways in p53-deficient primary cultures of malignant fibrous histiocytoma exposed to ifosfamide. Ifosfamide 119-129 tumor protein p53 Homo sapiens 43-46