FAM50A, Family With Sequence Similarity 50 Member A, DXS9928E, XAP5, HXC-26, 9F, Protein FAM50A, Protein XAP-, HXC26, DNA Segment On Chromosome X (Unique) 9928 Expressed Sequence, Armfield X-Linked Mental Retardation Syndrome, Family With Sequence Similarity 50, Member A, Protein HXC-26, MRXSA