PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3830061-6 1987 The A II response can be elicited when external Ca2+ is replaced by Sr2+ or Ba2+, but the response is inhibited when Mn2+ is added to the bath or when stimulated in a Ca2+-free solution. strontium cation 68-72 angiotensinogen Rattus norvegicus 4-8