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  1. pdf1974.pdf 
    https://www.nlm.nih.gov/.../nlmarchives/annualreport/1974.pdf
    ... the staff of NIH, shows the collection of ginseng materials he recently brought back from a visit ... 1974, pp. 259-265. Krivatsy, P.: Nicola Massa's Liber de Morbo Gallico—dated 1507 but printed in ...