array(2) {
  [0]=>
  int(0)
  [1]=>
  array(12) {
    ["ref_doc_id"]=>
    int(8949046)
    ["publisher_code"]=>
    int(28)
    ["base_code"]=>
    int(47)
    ["book_code"]=>
    int(1)
    ["page"]=>
    string(2) "10"
    ["sort"]=>
    int(9)
    ["body"]=>
    string(173) "1. van der Horst G, et al. Multiple mechanisms are involved in inhibition of osteoblast differentiation by PTHrP and PTH in KS483 Cells. J Bone Miner Res 2005 ; 20:2233. 44."
    ["mol"]=>
    NULL
    ["pubmed"]=>
    NULL
    ["doi"]=>
    string(19) "10.1359/JBMR.050821"
    ["group_id"]=>
    int(2)
    ["internal_flag"]=>
    bool(false)
  }
}