by Fisher, E.M, Shaffer, R.E
Published in Journal of applied microbiology (01.01.2011)

by Shaffer, E R, Brenner, J E, Houston, T P
Published in Tobacco control (01.08.2005)

by Shaffer, R.E., Cross, J.O., Rose-Pehrsson, S.L., Elam, W.T.
Published in Analytica chimica acta (05.09.2001)

by Bangalore, Arjun S, Shaffer, Ronald E, Small, Gary W, Arnold, Mark A
Published in Analytical chemistry (Washington) (01.12.1996)

by Evans, Lawrence, Collins, Greg E, Shaffer, Ronald E, Michelet, Veronique, Winkler, Jeffrey D
Published in Analytical chemistry (Washington) (01.12.1999)

by Shaffer, Ronald E, Rose-Pehrsson, Susan L
Published in Analytical chemistry (Washington) (01.10.1999)

by Gardner, William P, Shaffer, Ronald E, Girard, James E, Callahan, John H
Published in Analytical chemistry (Washington) (01.02.2001)

by Rengasamy, Samy, Eimer, Benjamin C., Shaffer, Ronald E.
Published in The Annals of occupational hygiene (01.03.2009)

by (D-Minn.), Senator Paul D. Wellstone, Shaffer, Ellen R
Published in The New England journal of medicine (20.05.1993)

by McGill, R.Andrew, Nguyen, Viet K, Chung, Russell, Shaffer, Ronald E, DiLella, Dan, Stepnowski, Jennifer L, Mlsna, Todd E, Venezky, David L, Dominguez, Dawn
Published in Sensors and actuators. B, Chemical (30.06.2000)

by SHAFFER, R. E, SMALL, G. W
Published in Analytical chemistry (Washington) (01.04.1997)

by Hart, S.J., Shaffer, R.E., Rose-Pehrsson, S.L., McDonald, J.R.
Published in IEEE transactions on geoscience and remote sensing (01.04.2001)

by Rose-Pehrsson, Susan L, Shaffer, Ronald E, Hart, Sean J, Williams, Frederick W, Gottuk, Daniel T, Strehlen, Brooke D, Hill, Scott A
Published in Sensors and actuators. B, Chemical (25.10.2000)

by Shaffer, Ronald E., Small, Gary W., Arnold, Mark A.
Published in Analytical chemistry (Washington) (01.08.1996)

by Shaffer, E R
Published in The New England journal of medicine (08.08.1996)

by Shaffer, Ronald E., Small, Gary W.
Published in Analytica chimica acta (30.09.1996)

by Ohorodnik, Susan K, Shaffer, Ronald E, Callahan, John H, Rose-Pehrsson, Susan L
Published in Analytical chemistry (Washington) (15.11.1997)

by Shaffer, E R, Cutler, A J, Wellstone, P D
Published in Hospital & community psychiatry (01.09.1994)

by Shaffer, E R
Published in Health PAC bulletin (1993)

by Shaffer, Ellen R, Waitzkin, Howard, Brenner, Joseph, Jasso-Aguilar, Rebeca
Published in American journal of public health (1971) (01.01.2005)