level of N-acetyllactosaminide beta-1,3-N-acetylglucosaminyltransferase 4 in blood serum (OBA_2040752) is the amount of a N-acetyllactosaminide beta-1,3-N-acetylglucosaminyltransferase 4 when measured in blood serum. Also known as: blood serum N-acetyllactosaminide beta-1,3-N-acetylglucosaminyltransferase 4 amount.