PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 27121430-11 2016 Therefore, further studies are needed to fully characterize the effects of the Val158met polymorphism of the COMT gene on treatment outcomes in patients with ADHD. val158met 79-88 catechol-O-methyltransferase Homo sapiens 109-113