TY - JOUR AU - Lichtenstein, P; Holm, N V; Verkasalo, P K TI - Environmental and heritable factors in the causation of cancer--analyses of cohorts of twins from Sweden, Denmark, and Finland JO - NEJM VL - 343 PY - 2000 DO - 10.1056/NEJM200007133430201 L3 - PubMed-ID: 10891514 SP - 78 EP - 85 N1 - et al. ER -