Gupta A K, Singhal S K, Mann S B, Bapuraj J R, Saran R K
Department of Otorhinolaryngology and Head and Neck Surgery, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
J Laryngol Otol. 1997 Dec;111(12):1177-8. doi: 10.1017/s0022215100139659.