TY - JOUR A1 - Lichtenstein, P. A1 - Holm, N.V. A1 - Verkasalo, P.K. A1 - Iliadou, A. A1 - Kaprio, J. A1 - Koskenvuo, M. A1 - Pukkala, E. A1 - Skytthe, A. A1 - Hemminki, K. T1 - Environmental and heritable factors in the causation of cancer - Analyses of cohorts of twins from Sweden, Denmark, and Finland Y1 - 2000 DO - 10.1056/NEJM200007133430201 JF - New England Journal of Medicine VL - 343 IS - 2 SP - 78 EP - -85 ER -