PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10065595-6 1999 Zinc concentrations and both soluble and particulate ACE activities in the testes of vitamin A- deficient rats (A- group) were significantly lower than the other two groups. Vitamin A 85-94 angiotensin I converting enzyme Rattus norvegicus 53-56