An international and interdisciplinary scientific organization to promote worldwide research and exchange of information on intellectual, learning and related developmental disabilities (mental retardation)

Mental Retardation Research Center focuses on molecular and genetic sciences. (University of Wisconsin at Madison)

Conducts research and education into the area of intellectual disability/mental retardation. (Dunedin, New Zealand)

Conducts and supports collaborative research, training, and information dissemination on behavioral, intellectual, and brain development. (Vanderbilt University at Nashville)

Studies of biomedical and behavioral processes that cause developmental disabilities. Describes programs of study. (University of Washington at Seattle)

Trains medical professionals in 12 disciplines related to developmental disabilities and mental retardation. (University of Pennsylvania School of Medicine, Philadelphia)

Provides details of research, student training, publications, and clinical services for children and adults. University of Alberta, Canada.