F. Ye, X. Li, Q. Lu: [Symptoms of depressive state in otolaryngology]. In: Zhonghua er bi yan hou ke za zhi. Band 32, Nummer 2, April 1997, S. 121–123, ISSN0412-3948. PMID 10743145.
F. Ye, X. Li, Q. Lu: [Symptoms of depressive state in otolaryngology]. In: Zhonghua er bi yan hou ke za zhi. Band 32, Nummer 2, April 1997, S. 121–123, ISSN0412-3948. PMID 10743145.