Hebei Medical Journal, Volume 33, Issue 15,2011, Pages 2292, doi:10.3969/j.issn.1002-7386.2011.15.027
JOURNAL OF QILU NURSING, Volume 17, Issue 15,2011, Pages 44-45, doi:10.3969/j.issn.1006-7256.2011.15.028
VALUE ENGINEERING, Volume 30, Issue 15,2011, Pages 156-157, doi:10.3969/j.issn.1006-4311.2011.15.115
GUIDE OF CHINA MEDICINE, Volume 09, Issue 15,2011, Pages 209-210, doi:10.3969/j.issn.1671-8194.2011.15.163