CHINESE JOURNAL OF ANESTHESIOLOGY, Volume 19, Issue 10,1999, Pages 606, doi:10.3760/cma.j.issn.0254-1416.1999.10.114
JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, Volume 13, Issue 10,1999, Pages 466, doi:10.3969/j.issn.1001-1781.1999.10.025
CHINESE JOURNAL OF SURGERY, Volume 37, Issue 10,1999, Pages 626, doi:10.3760/j:issn:0529-5815.1999.10.017
CHINESE JOURNAL OF UROLOGY, Volume 20, Issue 10,1999, Pages 640, doi:10.3760/j:issn:1000-6702.1999.10.026