Taylor & Francis BMJ 万方医学 Europe PMC Wolters Kluwer 查看更多 NCBI Oxford Univ Press NRC Research Press ResearchGate ResearchGate (全网免费下载) EBSCO EBSCO mcponline.org gastrohep.org publicatt.unicatt.it seminoncol.org scindeks.ceon.rs ualberta.ca (全网免费下载) ajcp.ascpjournals.org scienceopen.com gastrohep.com mendeley.com nejm.org (全网免费下载) hdl.handle.net pubfacts.com perspectivesinmedicine.cshlp.org ajcn.nutrition.org vivo.brown.edu scripts.iucr.org core.ac.uk jacionline.org annalsofrscb.ro cghjournal.org SAGE gastrojournal.org ajpgi.physiology.org molbiolcell.org science-open.com elife.elifesciences.org cebp.aacrjournals.org nejm.org f1000.com jcs.biologists.org mysciencework.com highbeam.com sites.ualberta.ca (全网免费下载)