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Trevisan M, Krogh V, Ferro-Luzzi A, Riccardi G, Freudenheim J, Sette S, Scaccini C.Trevisan M, et al. Among authors: krogh v.Ann Ist Super Sanita. 1992;28(3):397-401.Ann Ist Super Sanita. 1992.PMID: 1492739Italian.
Micheli A, Gatta G, Sant M, Krogh V, Perone C, Dell'Era L, Saltarelli S, Berrino F.Micheli A, et al. Among authors: krogh v.Tumori. 1997 Nov-Dec;83(6):875-9. doi: 10.1177/030089169708300601.Tumori. 1997.PMID: 9526576