array(2) { [0]=> int(0) [1]=> array(12) { ["ref_doc_id"]=> int(9231599) ["publisher_code"]=> int(35) ["base_code"]=> int(15) ["book_code"]=> int(1) ["page"]=> string(2) "20" ["sort"]=> int(48) ["body"]=> string(206) "1) Guidelines for the management of atrial fibrillation : The Task Force for the Management of Atrial Fibrillation of the European Society of Cardiology (ESC). Eur Heart J 2010 Aug 29. [Epub ahead of print]" ["mol"]=> NULL ["pubmed"]=> NULL ["doi"]=> NULL ["group_id"]=> int(4) ["internal_flag"]=> bool(false) } }