Bhaya M H, Morizono T, Schachern P A, Paparella M M
University of Minnesota Otitis Media Research Center, Department of Otolaryngology, University of Minnesota School of Medicine, Minneapolis.
Am J Otolaryngol. 1992 Nov-Dec;13(6):386-9. doi: 10.1016/0196-0709(92)90081-4.