Unsuspected renal artery stenosis in peripheral vascular disease.

young children. Ergonomtcs 1984;27:147. 12 Yeaton WH, Bailey JS. Teaching pedestrian safety skills to young children; an analysis and one year follow up. 7 Appl Behav Anal 1978;11:315-29. 13 Limbourg Mt, Gerber D. A parent training programme for the road. Safety education of preschool child. Accid Anal Prevent 1981;13:255-67. 14 Fortenberry JC, Brown DB. Problem identification, implementation and evaluation of a pedestrian safety programme. Accid Anal Prev 1982;14: 315-22. 15 Padgett SS, Waller PF. The evaluation of the North Carolina K-9 traffic safety curriculum: methodology, findings and recommendations. Chapel Hill, North Carolina: University of North Carolina Highway Safety Research Centre, 1975. 16 Sandels S. Young children and traffic. BrJ Ed Psychol 1970;40:111-5. 17 Gufstafsson LH. Children and traffic: some methodological aspects. Pediatrician 1979;8:181-7. 18 Hoffman ER, Payne A, Prescott S. Children's estimate of vehicle approach times. Hum Factors 1980;22:235-40. 19 Martin GL, Heimstra NW. The perception of hazard by young children. Journal ofSafety Research 1973;5:238-46. 20 Salvatore S. The ability of elementary and secondary school children to sense oncoming car velocity. Journal ofSafety Research 1974;6:118-25. 21 Sadler J. Children and road safety: a survey amongst mothers. HMSO: London, 1972. 22 Husband P, Hinton PE. Families of children with repeated accidents. Arch Dis Child 1972;47:3%-400. 23 Wadsworth J, Burnell J, Taylor B, Bulter N. Family type and accidents in preschool children. J Epidemiol Community Health 1983;37: 100-4. 24 Brown GW, Davidson S. Social class, psychiatric disorder of mother, and accidents to children. Lancet 1978;i:378-80. 25 Backett EM, Johnston AM. Social patterns of road accidents to children: some characteristics of vulnerable families. BMI7 1959;i:409-13. 26 Organisation for Economic Cooperation and Development: Traffic safetv of children. Paris: OECD, 1983. 27 Dorsch MM, Woodward AJ, Somers RL. Accid Anal Prev 1987;19:183-90. 28 Williams A, Wells J. Evaluation of the Rhode Island child restraint law. Amj Public Health 1981;71:742-3. 29 Snyder MB. Regulations for pedestrian and cycle safety: why, who, what and how to regulate. In: Proceedings of the Metropolitan Association of Urban Designers and Environmental Planners. New York: American Societs of Civil Engineers, 1984:553-64. 30 Friends of the Earth. The case for safe routes to school: a briefing by Fnrends of the Earth Road Safety Alert. London: Friends of the Earth, 1986. 31 Royal Dutch Touring Club. Woonerf. The Hague: Royal Dutch Touring Club, 1980. 32 Esbeiisen SB. An international inventory and comparatitve study oJflegislation and guidelines for children's play spaces in the residential environment. Ottawa: Canada Mortgage and Housing Corporation, 1979. 33 Playboard. Play and playgrounds in Rotterdam-a research approach. Birmingham: Association for Children's Play and Recreation Ltd, 1985. 34 Chilton T. Children's play in Newcastle upon 7yne. Birmingham: Association for Children's Play and the National Playing Fields Association, 1985. 35 Moore RC. Childhood's domain: play and place in child development. London: Croom Helm, 1986.