array(2) { [0]=> int(0) [1]=> array(12) { ["ref_doc_id"]=> int(9909416) ["publisher_code"]=> int(61) ["base_code"]=> int(66) ["book_code"]=> int(1) ["page"]=> string(3) "102" ["sort"]=> int(183) ["body"]=> string(115) "1) UKPDS group:Development and progression of nephropathy in type 2 diabetes:UKPDS 64. Kidney Int 63:225-232, 2003." ["mol"]=> NULL ["pubmed"]=> string(8) "12472787" ["doi"]=> string(32) "10.1046/j.1523-1755.2003.00712.x" ["group_id"]=> int(9) ["internal_flag"]=> bool(false) } }