array(2) { [0]=> int(0) [1]=> array(12) { ["ref_doc_id"]=> int(9589969) ["publisher_code"]=> int(49) ["base_code"]=> int(52) ["book_code"]=> int(1) ["page"]=> string(3) "107" ["sort"]=> int(132) ["body"]=> string(86) "1) Gould KL:PET perfusion imaging and nuclear cardiology. J Nucl Med 32:579-606, 1991." ["mol"]=> NULL ["pubmed"]=> string(7) "2013799" ["doi"]=> NULL ["group_id"]=> int(3) ["internal_flag"]=> bool(false) } }