BRCA1 and pure red-cell aplasia: Similar data have been recorded in the AJ population (Struewing et al, 1997; Warner et al, 1999; Giusti et al, 2003), although smaller clinical studies have generally not demonstrated an increased frequency of founder BRCA1/2 mutations among Jewish men with PRCA (Lehrer et al, 1998; Hubert et al, 1999; Nastiuk et al, 1999; Vazina et al, 2000).