1. Donegan WL, Sprall JS (1979) Cancer of breast. Saunders, Philadelphia, p 50
2. Haagensen CD (1971) Diseases of the breast, 2nd edn. Saunders, Philadelphia, p 467
3. Frank G (1988) Screening and detection of breast cancer. In: Lippmann ME, Lichter AS, Danforth DN (eds) Diagnosis and management of breast cancer. Saunders, Philadelphia, p 10
4. National Council on Radiation Protection and Measurements (1986) Mammography: a user’s guide. Bethesda, MD, National Council on Radiation Protection and Measurements, NCRP Report no 85
5. Kohagan JK, Darby WB, Spitznagel EL, et al (1986) Radiogenic breast cancer effects of mammographic screening. JNCI 77: 71