array(2) { [0]=> int(0) [1]=> array(12) { ["ref_doc_id"]=> int(9899665) ["publisher_code"]=> int(61) ["base_code"]=> int(39) ["book_code"]=> int(1) ["page"]=> string(3) "100" ["sort"]=> int(159) ["body"]=> string(114) "1) Krolewski A S, et al:The changing natural history of nephropathy in type 1 diabetes. Am J Med 78:785-794, 1985." ["mol"]=> NULL ["pubmed"]=> string(7) "3993659" ["doi"]=> string(28) "10.1016/0002-9343(85)90284-0" ["group_id"]=> int(7) ["internal_flag"]=> bool(false) } }