2 DIFFERENT GLYCOSYLTRANSFERASE DEFECTS THAT RESULT IN GALNAC-ALPHA-O-PEPTIDE (TN) EXPRESSION - KING, MJ; CHAN, A; ROE, R; WARREN, BF; DELL, A; MORRIS, HR; BARTOLO, DCC; DURDEY, P; CORFIELD, AP (GLYCOBIOLOGY, 1994)