NEW MASS SPECTROMETRIC APPROACHES FOR THE MEASUREMENT OF PCBS AND PERSISTENT PESTICIDES IN HUMAN SERUM Publication Attachment: 02-45.pdf Authors: Barr, J.R.,Maggio, V.L., Turner, W.E., Barr, D.B., Pirkle, J.L., Sjodin, A., Sandau, C.D., Needham, L.L. and Patterson, D.G. Jr. Year: 2002