PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9063035-4 1996 Intravenous injection of calcium followed by pentagastrin stimulates the release of somatostatin in patients with somatostatinoma and offers a reliable means for establishing the diagnosis of this tumor. Calcium 25-32 somatostatin Homo sapiens 84-96