• 1
    Kelsey J. L., Berkowitz G. S. Breast cancer epidemiology. Cancer Res 1988; 48: 561523.
  • 2
    Parazzini F., La Vecchia C., Boccholone L., Franceschi The epidemiology of endometrial cancer. Gynecol Oncol 1991; 41: 116.
  • 3
    Parazzini F., Franceschi S., La Vecchia C., Fasoli M. The epidemiology of ovarian cancer. Gynecol Oncol 1991; 43: 923.
  • 4
    Lee I-M., Paffenbarger R. S. Jr., Hsieh C-C.. Physical activity and risk of developing colorectal cancer among college alumni. J Natl Cancer Inst 1991; 83: 13249.
  • 5
    Gerhardsson M., Norell S. E., Kiviranta H., Pedersen N. L., Ahlbom A. Sedentary jobs and colon cancer. Am J Epidemiol 1986; 123: 77580.
  • 6
    Brownson R. C., Zahm S. H., Chang J. C., Blair A. Occupational risk of colon cancer: an analysis by anatomic subsite. Am J Epidemiol 1989; 130: 67587.
  • 7
    Peters R. K., Garabrant D. H., Yu M. C., Mack T. M. A case-control study of occupational and dietary factors in colorectal cancer in young men by subsite. Cancer Res 1989; 49: 545968.
  • 8
    Vetter R., Dosemeci M., Blair A., Wacholder S., Unsal M., Engin K., et al. The influence of occupational physical activity on colon cancer risk in Turkey. Eur J Epidemiol. In press.
  • 9
    Frisch R. E., Wyshak G., Albright N. L., Albright T. E., Schiff I., Wischi J., et al. Lower lifetime occurrence of breast cancer and cancers of the reproductive system among former college athletes. Am J Clin Nutr 1987; 45: 32835.
  • 10
    Vena J. E., Graham S., Zielezny M., Brasure J., Swanson M. K. Occupational exercise and risk of cancer. Am J Clin Nutr 1987; 45: 31827.
  • 11
    Frisch R. E., Wyshak G., Vincent L. Delayed menarche and amenorrhea in ballet dancers. N Engl J Med 1980; 303: 179.
  • 12
    Warrem M. P. The effects of exercise on pubertal progression and reproductive function in girls. J Clin Endocrinol Metab 1980; 51: 11507.
  • 13
    Dale E., Gerlach D. H., Wilhite A. L. Menstrual dysfunction in distance runners. Obstet Gynecol 1979; 54: 4753.
  • 14
    Shepard R. J. Physical activity and cancer. Int J Sports Med 1990; 111: 41320.
  • 15
    Gao Y. T., Gao R. N., Jin F. A changing cancer pattern in Shanghai urban area. Tumor 1988; 8: 36.
  • 16
    Gao Y. T., McLaughlin J. K., Gao R. N., Kneller R. W., Liu M. H., Sheng J. P., et al. Investigation of occupational cancer incidence in Shanghai: background and methods. Tumor (Shanghai) 1990; 10: 4953.
  • 17
    Chow W-H., Dosemeci M., Zheng W., Vetter R., McLaughlin J. K., Gao Y-T., et al. Physical activity and occupational risk of colon cancer in Shanghai, China. Int J Epidemiol 1993; 22: 239.
  • 18
    National Bureau of Statistics. Standard classification of industriees and occupations used for the third national census. Beijing: Office of the National Census of the State Council, 1982: 175.
  • 19
    Breslow N. E., Day N. E. Statistical methods in cancer research. vol. 2. Lyon, France: International Agency for Research on Cancer. 1987: 281.
  • 20
    Holdstock D. J., Misiewicz J. J., Smith T., Rowlands E. N. Propulsion (mass movements) in the human colon and its relationship to meals and somatic activity. Gut 1970; 11: 9199.
  • 21
    Shu X. O. Gao YT, Yuan JM, Ziegler RG, Brinton LA. Dietary factors and epithelial ovarian cancer. Br J Cancer 1989; 59: 926.
  • 22
    Shu X. O., Zheng W., Potischman N., Brinton L. A., Hatch M., Gao Y. T., et al. A population based case-control study of dietary factors and endometrial cancer in Shanghai. Am J Epidemiol 1993; 137: 15565.
  • 23
    Willett W. The search for the cause of breast and colon cancer. Nature 1988; 338: 38994.
  • 24
    Shu X. O., Brinton L. A., Gao Y. T., Yuan J. M. A population-based case-control study of ovarian cancer in Shanghai. Cancer Res 1989; 49: 367074.
  • 25
    Shu X. O., Brinton, L. A., Zheng W., Gao Y. T., Jin F., Fraumeni J. F. Jr. A population-based case-control study of endometrial cancer in Shanghai, China. Int J Cancer 1991; 49: 3843.