2Johnon AP,Smallman LA,Kent SE. The mechanism of tympanic membrane perferations. A two diamensional. Histological study in gainca pigs. Acta Otolryngol(Stockh) ,1990,109:406.
3Reijinen CJ H. Kuijpers W. Hearing pattern of the drum membrane Acta Otolaryngol (stockh), 1971.287:1.
4Vraber JT, Schwaber MK, Davidson JM, et al. Evaluation of basic fibroblast growth factor in tympanic membrane repair, Laryngoscope, 1994.104 : 1059.