array(2) {
  [0]=>
  int(0)
  [1]=>
  array(12) {
    ["ref_doc_id"]=>
    int(9894854)
    ["publisher_code"]=>
    int(61)
    ["base_code"]=>
    int(27)
    ["book_code"]=>
    int(1)
    ["page"]=>
    string(3) "102"
    ["sort"]=>
    int(110)
    ["body"]=>
    string(175) "1) De Luca G, et al:Time delay to treatment and mortality in primary angioplasty for acute myocardial infarction:every minute of delay counts. Circulation 109:1223-1225, 2004."
    ["mol"]=>
    NULL
    ["pubmed"]=>
    string(8) "15007008"
    ["doi"]=>
    string(34) "10.1161/01.CIR.0000121424.76486.20"
    ["group_id"]=>
    int(7)
    ["internal_flag"]=>
    bool(false)
  }
}