by Purdy, David E., Chang, Gwong-Jen J.
Published in Virology (New York, N.Y.) (15.03.2005)

by Holmes, Derek A, Purdy, David E, Chao, Day-Yu, Noga, Amanda J, Chang, Gwong-Jen J
Published in Journal of Clinical Microbiology (01.07.2005)

by PURDY, David E, NOGA, Amanda J, CHANG, Gwong-Jen J
Published in Journal of Clinical Microbiology (01.10.2004)

by Rofsky, N M, Purdy, D E, Johnson, G, DeCorato, D R, Earls, J P, Krinsky, G, Weinreb, J C
Published in Radiology (01.01.1997)

by PURDY, DE, ZINTEK, LB, NAIR
Published in Nucleosides & nucleotides (01.03.1994)

by Presidente de Grupo Purdy Jéssica I Montero Soto
Published in La Nación (08.09.2018)

by Presidente de Grupo Purdy Motor Cristina Fallas Villalobos
Published in La Nación (21.07.2018)