array(2) { [0]=> int(0) [1]=> array(12) { ["ref_doc_id"]=> int(9391030) ["publisher_code"]=> int(39) ["base_code"]=> int(68) ["book_code"]=> int(2) ["page"]=> string(3) "105" ["sort"]=> int(40) ["body"]=> string(78) "1) Price AB, Davies DR : Pseudomembranous colitis. J Clin Pathol 1977, 30:1-12" ["mol"]=> NULL ["pubmed"]=> NULL ["doi"]=> string(18) "10.1136/jcp.30.1.1" ["group_id"]=> int(53) ["internal_flag"]=> bool(false) } }