4Loh W S, Leong J L, Tan H K. Hazarclous foreign bodies: comp lica2 tions and management of button batteries in nose[J]. Ann Otol Rhi2 nol Laryngo, 2003, 112 (4) : 379-783.
5Ki Kwon Kim, Uung Ran Kim, J i Yong Kim. Button battery impac2 tion in nasal cavity[J]. J KoreanMed Sci, 1999, 14 (2) : 210-212.
6TongM C, Van Hasselt C A, Woo J K. The hazards of button batteries in the nose[J]. J Otolaryngol, 1992, 21 (6) : 458-460.
7Tong MC, Van Hasseh CA, Woo JK. The hazards of button batteries in the nose. J Otolaryngol, 1992, 21(6): 458-460.
8Kim KK, Kim JR, Kim JY. Button battery impaction in nasal cavity. J Korean Med Sci, 1999, 14(2): 210-212.
9Loh WS,Leong JL,Tan HK.Hazardous foreignbodies:comp lica2tions and management of buttonbatteries in nose[J].Ann Otol Rhi2nol Laryngo,2003,112(4):379-783.
10Ki Kwon Kim,Uung Ran Kim,Ji Yong Kim.Buttonbattery impac2tion in nasal cavity[J].J Korean Med Sci,1999,14(2):210-212.