6Brin I,Hushfeld Z,Shanfeld JL,et al.Rapid palatal expansion in cats:effect of age on sutural cyclicnucleotides.Am J Orthod,1981,79:162-75.
7Storey E.Tissue respons to the movemtnt of bones.Am J orthod,1973,64:229-247.
8Kambara T.Dentofacial changes produced by extraoral forward force in the macacaints.Am J Orthod,1977,71:249-277.
9Miyawak IS,Forbes DP.The morphologic and biochemical effects of tensile force application tothe interparietal suture of the sprague dawley rat.Am J Orthod Dentofac Orthop,1987,92:123-133.
10Movassaghi K,Altobelli DE,Zhou H.Frontonasal suture expansion in the rabbit using titaniumScrews.J Oral Maxillofac Surg,1995,53:1003-1042.