PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18708351-7 2008 Furthermore, overexpression of p27(Kip1) in the resistant OHT(R) cells caused enhanced cell death when exposed to tamoxifen. Tamoxifen 114-123 zinc ribbon domain containing 2 Homo sapiens 31-34