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Heyer N, Weiss NS, Demers P, Rosenstock L.Heyer N, et al. Among authors: weiss ns.Am J Ind Med. 1990;17(4):493-504. doi: 10.1002/ajim.4700170407.Am J Ind Med. 1990.PMID: 2327416
Van den Eeden SK, Weiss NS, Strader CH, Daling JR.Van den Eeden SK, et al. Among authors: weiss ns.Am J Ind Med. 1991;19(3):327-37. doi: 10.1002/ajim.4700190307.Am J Ind Med. 1991.PMID: 1848964