• OCLC WorldCat
   https://www.worldcat.org/title/acute-and-critical-care-acc/oclc/1083475299

• Korean Medical Journal Information
   https://journals.koreamed.org/search.php?where=vd&id=3045

• National Library of Korea
   http://nl.go.kr/nl/search/search.jsp?img=n&hanja=&sort=&desc=desc&all=on&topF1=title_author&kwd=acute+and+critical+care&x=35&y=21

• United States National Medical Library
   https://www.ncbi.nlm.nih.gov/nlmcatalog/101726905

• Directory of Open Access Journal
   https://doaj.org/toc/2586-6060