array(2) { [0]=> int(0) [1]=> array(12) { ["ref_doc_id"]=> int(9808117) ["publisher_code"]=> int(56) ["base_code"]=> int(43) ["book_code"]=> int(2) ["page"]=> string(3) "107" ["sort"]=> int(226) ["body"]=> string(109) "1) Ingall TJ et al:The effects of ageing on autonomic nervous system function. Aust NZ J Med 20:570-577, 1990" ["mol"]=> NULL ["pubmed"]=> NULL ["doi"]=> string(34) "10.1111/j.1445-5994.1990.tb01315.x" ["group_id"]=> int(4) ["internal_flag"]=> bool(false) } }