APA (7th ed.) Citation

Yang Xiangzhong & Xu Jie. (2003). Will cloned animals suffer premature aging - The story at the end of clones' chromosomes. BMC.

Chicago Style (17th ed.) Citation

Yang Xiangzhong and Xu Jie. Will Cloned Animals Suffer Premature Aging - The Story at the End of Clones' Chromosomes. BMC, 2003.

MLA (9th ed.) Citation

Yang Xiangzhong and Xu Jie. Will Cloned Animals Suffer Premature Aging - The Story at the End of Clones' Chromosomes. BMC, 2003.

Warning: These citations may not always be 100% accurate.