array(2) { [0]=> int(0) [1]=> array(12) { ["ref_doc_id"]=> int(9890893) ["publisher_code"]=> int(61) ["base_code"]=> int(19) ["book_code"]=> int(1) ["page"]=> string(3) "101" ["sort"]=> int(180) ["body"]=> string(157) "1) Agarwal R, et al:Prevalence, treatment, and control of hypertension in chronic hemodialysis patients in the United States. Am J Med 115 (4):291-297, 2003." ["mol"]=> NULL ["pubmed"]=> string(8) "12967694" ["doi"]=> string(29) "10.1016/S0002-9343(03)00366-8" ["group_id"]=> int(8) ["internal_flag"]=> bool(false) } }