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Lassen NA, García del Río H, Gembicki M, Alpert J, Larsen A.Lassen NA, et al.Strahlentherapie Sonderb. 1967;65:145-52.Strahlentherapie Sonderb. 1967.PMID: 6028414No abstract available.
Trap-Jensen J, Alpert JS, García del Rio, Lassen NA.Trap-Jensen J, et al. Among authors: alpert js.Acta Med Scand Suppl. 1967;476:135-46. doi: 10.1111/j.0954-6820.1967.tb12692.x.Acta Med Scand Suppl. 1967.PMID: 5236036No abstract available.