array(2) { [0]=> int(0) [1]=> array(12) { ["ref_doc_id"]=> int(9898681) ["publisher_code"]=> int(61) ["base_code"]=> int(36) ["book_code"]=> int(1) ["page"]=> string(3) "104" ["sort"]=> int(126) ["body"]=> string(117) "1) Kwo PY, et al:Acute hepatitis E by a new isolate acquired in the United States. Mayo Clin Proc 72:1133-1136, 1997." ["mol"]=> NULL ["pubmed"]=> string(7) "9413292" ["doi"]=> string(18) "10.4065/72.12.1133" ["group_id"]=> int(8) ["internal_flag"]=> bool(false) } }