title: Ring Y chromosome: 45,X/46,Xr(Y) chromosome mosaicism in a phenotypically normal male with azoospermia.
mesh_terms: D000328:Adult; D006801:Humans; D007248:Infertility, Male / Q000235:genetics*; D008297:Male; D009030:Mosaicism; D010641:Phenotype; D012729:Sex Chromosome Aberrations; D012730:Sex Chromosomes; D013091:Spermatogenesis