array(2) { [0]=> int(1) [1]=> array(12) { ["ref_doc_id"]=> int(9679588) ["publisher_code"]=> int(54) ["base_code"]=> int(208) ["book_code"]=> int(1) ["page"]=> string(3) "118" ["sort"]=> int(105) ["body"]=> string(98) "1) Sandler G, Ilahi MA, Lawson CW : Glycerol trinitrate in angina pectoris. Lancet 1 : 1130, 1963." ["mol"]=> NULL ["pubmed"]=> string(8) "13976240" ["doi"]=> string(29) "10.1016/S0140-6736(63)91802-6" ["group_id"]=> int(6) ["internal_flag"]=> bool(false) } }