[1] Univ North Dakota, Coll Educ & Human Dev, Dept Educ Hlth & Behav Studies, 231 Centennial Dr Stop 7189, Grand Forks, ND 58202 USA
[2] Univ Wyoming, Wyoming Inst Disabil, Laramie, WY USA
[3] Georgia State Univ, Ctr Leadership Disabil, Atlanta, GA USA
[4] Univ Colorado, Dept Psychiat, Sch Med, Aurora, CO USA
[5] Univ Colorado Anschutz Med Campus, Colorado Sch Publ Hlth, Dept Epidemiol, Aurora, CO USA
[6] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Mental Hlth, Baltimore, MD USA
[7] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Epidemiol, Baltimore, MD USA
[8] Natl Ctr Birth Defects & Dev Disabil, CDCP, Atlanta, GA USA