Are clusters of mental retardation correlated with clusters of developmental delay?

by Huiling Zhen, Suzanne McDermott, Andrew B. Lawson, C. Marjorie Aelion
Published 2009-11-01

A spatial analysis of mental retardation of unknown cause and maternal residence during pregnancy

by Huiling Zhen, Andrew B. Lawson, Suzanne McDermott, Archana Pande Lamichhane, Marjorie Aelion
Published 2008-05-01