Association of Tr ansforming Growth Factor - α Gene Polymorphism and Environment Factor s with Nonsyndromic Cleft Lip with or without Cleft Palate in Han Nationality

YUAN Kui - feng1, LAI Qing- guo1, ZHOU Xiao- hong2, QIN Yi- fei3

West China Journal of Stomatology . 2007, (03): 285 -288 .