array(2) { [0]=> int(0) [1]=> array(12) { ["ref_doc_id"]=> int(9668351) ["publisher_code"]=> int(54) ["base_code"]=> int(168) ["book_code"]=> int(1) ["page"]=> string(3) "117" ["sort"]=> int(98) ["body"]=> string(140) "1) Bellamy, G. and Borenstein, P.:Evidence for procollagen, a biosynthetic precursor of collagen, Proc. Nat. Acad. Sci., 68:1138-1142, 1971." ["mol"]=> NULL ["pubmed"]=> NULL ["doi"]=> string(22) "10.1073/pnas.68.6.1138" ["group_id"]=> int(5) ["internal_flag"]=> bool(false) } }