Blindness and deafness: Double merle Aussies ordinarily have eye defects and also are at bigger chance of becoming deaf. Gi?m nguy c? tr? phát tri?n ch?m ngôn ng?. Ng?n ch?n d? t?t b?m sinh ?ng th?n kinh n?m xung quanh h? th?n kinh trung ??ng.Liên h? v?i chúng tôi H? th?ng Vinmec Tìm bác s? B?o Hello?m D?ch v? b?o Hello?m D?ch v? y t? Thôn