PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19838086-1 2009 To assess the potency, efficacy and toxicity of abacavir/lamivudine (ABC/3TC) versus tenfovir/emcitrabine (TDF/FTC) with efavirenz (EFV) in naive patients with HIV infection a prospective observational study was carried out to evaluate immunovirological parameters every three months and metabolic parameters every six months. abacavir 48-56 ATP binding cassette subfamily B member 6 (Langereis blood group) Homo sapiens 69-72