array(2) { [0]=> int(12) [1]=> array(12) { ["ref_doc_id"]=> int(9623555) ["publisher_code"]=> int(54) ["base_code"]=> int(52) ["book_code"]=> int(1) ["page"]=> string(3) "121" ["sort"]=> int(126) ["body"]=> string(96) "1) Diabetes Mellitus, Report of a WHO Expert Committee:Wld. Hlth. Org. Techn. Rep. Series, 1965." ["mol"]=> NULL ["pubmed"]=> NULL ["doi"]=> NULL ["group_id"]=> int(5) ["internal_flag"]=> bool(false) } }