PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8190338-3 1994 Hence, a trial with oral theophylline was performed in the three patients, resulting in a sustained decrease of the haematocrit (from 43.6 to 33%) and endogenous erythropoietin (from 46 to 15 mU/ml) levels. Theophylline 25-37 erythropoietin Homo sapiens 162-176