Gene-based screening for Y chromosome deletions in Taiwanese men presenting with spermatogenic failure  Yung-Ming Lin, M.D., Ying-Hung Lin, M.Sc., Yen-Ni Teng, Ph.D., Chao-Chin Hsu, Ph.D., Johnny Shinn-Nan Lin, M.D., Pao-Lin Kuo, M.D.  Fertility and Sterility  Volume 77, Issue 5, Pages 897-903 (May 2002) DOI: 10.1016/S0015-0282(02)03059-5

FIGURE 1 Y chromosome maps in 19 patients presenting with spermatogenic failure. In each map, the presence of a gene or sequence-tagged site (STS) is indicated by a vertical black bar, and the absence of a gene or STS is indicated by the absence of any symbol. A thin vertical line represents positive results on polymerase chain reaction and should be considered a consequence of a specific gene repeating within the Y chromosome. HS = hypospermatogenesis; MA = maturation arrest; NA = not available; SCO = Sertoli cell-only syndrome. Lin. Gene-based screening for Y chromosome deletions. Fertil Steril 2002. Fertility and Sterility 2002 77, 897-903DOI: (10.1016/S0015-0282(02)03059-5)