1. Holland WW, Stewart S: Screening in Disease Prevention: What works?. 2005, Oxon: Radcliffe Publishing Ltd
2. Wilson JMG, Jungner G: Principle and practice of screening for disease. 1968, Geneva: World Health Organization
3. Frankenburg WK: Selection of Diseases and Tests in Pediatric Screening. Pediatrics. 1974, 54: (5):612-616.
4. Marshall KG: Prevention. How much harm? How much benefit? 3. Physical, psychological and social harm. CMAJ. 1996, 155 (2): 169-176.
5. Marshall KG: Prevention. How much harm? How much benefit? 4. The ethics of informed consent for preventive screening programs. CMAJ. 1996, 155 (4): 377-383.