XIST
XISS/R: XML Indexing and Storage System Using RDBMS
XIS-6040 - Sectron
XIS* XML Intranet System
Xiphoid horn in pectus excavatum
Xiphinema americanum sensu lato
Xipe Totec Aztec Figure
Xiong, N., C.H. Kang, and D.H. Raulet. 2002. Redundant and unique roles of two enhancer elements in the TCR gamma locus in gene regulation and gamma delta T cell development. Immunity 16:453-463. 
XIO1100 Data Manual (Rev. C)
Xin_Zhou_Master_Thesis
Xin_Wang_Hhae - Compgenomics 2011
Xin_Grodzin_report
XinpengBai (169
Xinnian Dong
Xinnan Wang Stanford University School of Medicine
Xinjiang Information
Xīnjiāng - Lonely Planet
Xinjiang - DB Research
xingxin liu (刘 幸 昕) - TUALP
Xinghai "Yellow River Concerto,"
Xing Zheng