Studying the epidemiology of attention-deficit hyperactivity disorder: Screening method and pilot resultsROWLAND, Andrew S; UMBACH, David M; CATOE, Karen E et al.Canadian journal of psychiatry. 2001, Vol 46, Num 10, pp 931-940, issn 0706-7437Article

Pesticide use and incident diabetes among wives of farmers in the Agricultural Health StudySTARLING, Anne P; UMBACH, David M; KAMEL, Freya et al.Occupational and environmental medicine (London). 2014, Vol 71, Num 9, pp 629-635, issn 1351-0711, 7 p.Article

Respiratory disease in United States farmersHOPPIN, Jane A; UMBACH, David M; BEANE FREEMAN, Laura E et al.Occupational and environmental medicine (London). 2014, Vol 71, Num 7, pp 484-491, issn 1351-0711, 8 p.Article

Scan impedance of RSW microstrip antennas in a finite arrayCHEN, Richard L; JACKSON, David R; WILLIAMS, Jeffery T et al.IEEE transactions on antennas and propagation. 2005, Vol 53, Num 3, pp 1098-1104, issn 0018-926X, 7 p.Article

Modification and control of currents on electrically large wire structures using composite dielectric bead elementsKENNEDY, Timothy F; FASENFEST, Kathleen D; LONG, Stuart A et al.IEEE transactions on antennas and propagation. 2006, Vol 54, Num 12, pp 3608-3613, issn 0018-926X, 6 p.Article

Characterization of the Input Impedance of the Inset-Fed Rectangular Microstrip AntennaYING HU; JACKSON, David R; WILLIAMS, Jeffery T et al.IEEE transactions on antennas and propagation. 2008, Vol 56, Num 10, pp 3314-3318, issn 0018-926X, 5 p.Article

Dielectric bead loading for control of currents on electrically long dipole antennasKENNEDY, Timothy F; LONG, Stuart A; WILLIAMS, Jeffery T et al.IEEE antennas and propagation society international symposiumNational radio science meeting. 2004, pp 4420-4423, isbn 0-7803-8302-8, 4Vol, 4 p.Conference Paper