Full retractions: Pei-Liang Chen, Ya-Wen Cheng, Chun-Chi Chiang, Sung Huei Tseng, Pak Sam Chau, Yi-Yu Tsai. Hypermethylation of the p16 gene promoter in pterygia and its association with the expression of DNA methyltransferase 3b. Molecular Vision 2006; 12:1411-1416

Te-Jen Lai, Yi-Yu Tsai, Ya-Wen Cheng, Chun-Chi Chiang, Huei Lee, Ming-Chih Chou, Julia Hueimei Chang. An association between BPDE-like DNA adduct levels and P53 gene mutation in pterygium. Mol Vis. 2006; 12:1687-91.

Chun-Chi Chiang, Ya-Wen Cheng, Chien-Lin Lin, Huei Lee, Fuu-Jen Tsai, Sung-Huei Tseng, Yi-Yu Tsai. Cyclooxygenase 2 expression in pterygium. Molecular Vision 2007; 13:635-638.

Yi-Yu Tsai, Chi-Chung Chang, Chun-Chi Chiang, Kun-Tu Yeh, Pei-Liang Chen, Chi-Huang Chang, Ming-Chih Chou, Huei Lee, Ya-Wen Cheng. HPV infection and p53 inactivation in pterygium. Molecular Vision 2009; 15:1092-1097.

Jai-Nien Tung, Heng-Hsiung Wu, Chun-Chi Chiang, Yi-Yu Tsai, Ming-Chih Chou, Huei Lee, Ya-Wen Cheng. An association between BPDE-like DNA adduct levels and CYP1A1 and GSTM1 polymorphisma in pterygium. Molecular Vision 2010; 16:623-629

Pei-Liang Chen, Kun-Tu Yeh, Yi-Yu Tsai, Hank Koeh, Yu-Ling Liu, Huei Lee, Ya-Wen Cheng. XRCC1, but not APE1 and hOGG1 gene polymorphisms is a risk factor for pterygium. Molecular Vision 2010; 16:991-996.

Chi-Hsien Young, Yu-Te Chiu, Tung-Sheng Shih, Wan-Ru Lin, Chun-Chi Chiang, Ying-Erh Chou, Ya-Wen Cheng, Yi-Yu Tsai. E-cadherin promoter hypermethylation may contribute to protein inactivation in pterygia. Molecular Vision 2010; 16:1047-1053.

Chi-Hsien Young, Yu-Lun Lo, Yi-Yu Tsai, Tung-Sheng Shih, Huei Lee, Ya-Wen Cheng. CYP1A1 gene polymorphisms as a risk factor for pterygium. Molecular Vision 2010; 16:1054-1058

Jai-Nien Tung, Chun-Chi Chiang, Yi-Yu Tsai, Ying-Yi Chou, Kun-Tu Yeh, Huei Lee, Ya-Wen Cheng. CyclinD1 protein expressed in pterygia is associated with β-catenin protein localization. Molecular Vision 2010; 16:2733-2738.