array(2) { [0]=> int(0) [1]=> array(12) { ["ref_doc_id"]=> int(8135343) ["publisher_code"]=> int(4) ["base_code"]=> int(66) ["book_code"]=> int(1) ["page"]=> string(3) "101" ["sort"]=> int(87) ["body"]=> string(177) "1) World Health Organization : Report of a WHO study group. Clinical Pharmacology, scope, organization, training. World Health Organization Reports Series No. 446, pp.7-8, 1970." ["mol"]=> NULL ["pubmed"]=> NULL ["doi"]=> NULL ["group_id"]=> int(2) ["internal_flag"]=> bool(false) } }