array(2) {
  [0]=>
  int(0)
  [1]=>
  array(12) {
    ["ref_doc_id"]=>
    int(8141266)
    ["publisher_code"]=>
    int(4)
    ["base_code"]=>
    int(91)
    ["book_code"]=>
    int(1)
    ["page"]=>
    string(3) "104"
    ["sort"]=>
    int(144)
    ["body"]=>
    string(126) "1) George JD:New clinical method for measuring the rate of gastric empting;the double sampling test meal. Gut 9:237-242, 1968."
    ["mol"]=>
    NULL
    ["pubmed"]=>
    NULL
    ["doi"]=>
    string(19) "10.1136/gut.9.2.237"
    ["group_id"]=>
    int(4)
    ["internal_flag"]=>
    bool(false)
  }
}