array(2) { [0]=> int(0) [1]=> array(12) { ["ref_doc_id"]=> int(9617696) ["publisher_code"]=> int(54) ["base_code"]=> int(39) ["book_code"]=> int(1) ["page"]=> string(3) "125" ["sort"]=> int(276) ["body"]=> string(80) "1) Bohr DF:Adrenergic receptors in coronary artries. Ann Acad Sci 139:799, 1964." ["mol"]=> NULL ["pubmed"]=> NULL ["doi"]=> string(34) "10.1111/j.1749-6632.1967.tb41248.x" ["group_id"]=> int(4) ["internal_flag"]=> bool(false) } }