1. Accidental injury complicating pregnancy
2. Bureau of Labor Statistics. 1982. Work injury report?Falls from elevations (Appendix C survey questionnaire). Publication BLS 98E.
3. Bureau of Labor Statistics. 2000. Median weekly earnings of full time wage and salary workers by detailed occupation and sex. Available at: www.census.gov/case/ostbo625.pdf
4. Bureau of Labor Statistics. 2002. Publication USDL 02-196.