DELETION MAPPING BY IMMUNOSELECTION AGAINST THE H-Y HISTOCOMPATIBILITY ANTIGEN FURTHER RESOLVES THE SXR(A) REGION OF THE MOUSE Y-CHROMOSOME AND REVEALS COMPLEXITY OF THE HYA LOCUS - KING,TR; CHRISTIANSON,GJ; MITCHELL,MJ; BISHOP,CE; SCOTT,D; EHRMANN,I; SIMPSON,E; EICHER,EM; ROOPENIAN,DC (GENOMICS, 1994)