PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 28985716-3 2017 We previously showed that the catechol-O-methyltransferase (COMT) genotype is related to the plasma level of morphine and the required dose of morphine in an exploratory prospective study. Morphine 109-117 catechol-O-methyltransferase Homo sapiens 30-58 28985716-3 2017 We previously showed that the catechol-O-methyltransferase (COMT) genotype is related to the plasma level of morphine and the required dose of morphine in an exploratory prospective study. Morphine 109-117 catechol-O-methyltransferase Homo sapiens 60-64 28985716-3 2017 We previously showed that the catechol-O-methyltransferase (COMT) genotype is related to the plasma level of morphine and the required dose of morphine in an exploratory prospective study. Morphine 143-151 catechol-O-methyltransferase Homo sapiens 30-58 28985716-3 2017 We previously showed that the catechol-O-methyltransferase (COMT) genotype is related to the plasma level of morphine and the required dose of morphine in an exploratory prospective study. Morphine 143-151 catechol-O-methyltransferase Homo sapiens 60-64 28985716-4 2017 The findings showed that a group of patients with a GG single nucleotide polymorphism (SNP) rs4680 in COMT required a significantly higher dose of morphine than a non-GG group. Morphine 147-155 catechol-O-methyltransferase Homo sapiens 102-106