The red blood cell Esterase D polymorphism in Europe and Asia - Cartwright, R. A.; Bethel, I. L.; Hargreaves, H.; Izatt, M.; Jolly, J.; Mitchell, R. J.; Sawhney, K. S.; Smith, M.; Sunderland, E.; Teasdale, D. (Springer, 1976)
http://dx.doi.org/10.1007/BF00281890
Keywords: W; WW-YZ