1. Frame of reference: old age as the context for the prevention and treatment of cancer;Yancik,1983
2. Bevolkingsprognose voor Nederland 1985–2030;Centraal Bureau voor de Statistiek (CBS),1985
3. Falling rates of lung cancer in men in the United States;Horm;Lancet,1986
4. Samenwerkingsorgaan Oncologie Ziekenhuizen (IKZ-SOOZ);Comprehensive Cancer Center South,1985
5. Cancer incidence and survival in patients 65 years of age and older;Baranowsky;C.A. Cancer J. Clin.,1986