array(2) { [0]=> int(0) [1]=> array(12) { ["ref_doc_id"]=> int(8954133) ["publisher_code"]=> int(28) ["base_code"]=> int(57) ["book_code"]=> int(1) ["page"]=> string(3) "100" ["sort"]=> int(118) ["body"]=> string(160) "1. Silbergleit R, et al. Imaging-guided injection techniques with fluoroscopy and CT for spinal pain management. Radiographics 2001;21:927-39; discussion 940-2." ["mol"]=> NULL ["pubmed"]=> NULL ["doi"]=> string(37) "10.1148/radiographics.21.4.g01jl15927" ["group_id"]=> int(5) ["internal_flag"]=> bool(false) } }