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Vandenberg H, Johnson L.Vandenberg H, et al.Can Bull Med Hist. 2022 Apr;39(1):125-152. doi: 10.3138/cjhh.539-072021.Can Bull Med Hist. 2022.PMID: 35506602
Vandenberg H, Martin W, Dietrich Leurer M, Ens A.Vandenberg H, et al.Can Bull Med Hist. 2021;38(1):93-127. doi: 10.3138/cbmh.454-062020. Epub 2021 Apr 5.Can Bull Med Hist. 2021.PMID: 33836136