[1] Lin He,
[2] Xingyue He,undefined
[3] Scott W. Lowe and Gregory J. Hannon are at the Watson School of Biological Sciences,undefined
[4] Howard Hughes Medical Institute,undefined
[5] Cold Spring Harbor Laboratory,undefined
[6] 1 Bungtown Road,undefined
[7] Cold Spring Harbor,undefined
[8] New York 11724,undefined
[9] USA.,undefined
[10] Xingyue He is at the Program in Genetics,undefined
[11] Stony Brook University,undefined
[12] Stony Brook,undefined
[13] New York 11794,undefined
[14] USA.,undefined