CHINESE JOURNAL OF ULTRASOUND IN MEDICINE, Volume 15, Issue 12,1999, Pages 949, doi:10.3969/j.issn.1002-0101.1999.12.036
CHINESE JOURNAL OF BASIC MEDICINE IN ADITIONAL CHINESE MEDICINE, Volume 5, Issue 12,1999, Pages 36, doi:10.3969/j.issn.1006-3250.1999.12.013
ACTA ACADEMIAE MEDICINAE SUZHOU, Volume 19, Issue 12,1999, Pages 1261-1263, doi:10.3969/j.issn.1673-0399.1999.12.006
LISHIZHEN MEDICINE AND MATERIA MEDICA RESEARCH, Volume 10, Issue 12,1999, Pages 938, doi:10.3969/j.issn.1008-0805.1999.12.063