Heng H.H.Q., Xie В., Shi X.-M., Tsui L.-C., Mahuran D.J. Refined mapping of the GM2 activator protein (GM2A) locus to 5q31.3-q33.1, distal to the spinal muscular atrophy locus //Ge-nomics. - 1993. - Vol. 18. - P.429-431.