European Journal of Epidemiology
European Journal of Epidemiology > 1997 > 13 > 7 > 755-759
European Journal of Epidemiology > 1997 > 13 > 7 > 761-764
European Journal of Epidemiology > 1997 > 13 > 7 > 825-830
European Journal of Epidemiology > 1997 > 13 > 7 > 795-800
European Journal of Epidemiology > 1997 > 13 > 7 > 817-823
European Journal of Epidemiology > 1997 > 13 > 7 > 737-743
European Journal of Epidemiology > 1997 > 13 > 7 > 841-843
European Journal of Epidemiology > 1997 > 13 > 7 > 801-805
European Journal of Epidemiology > 1997 > 13 > 7 > 837-840
European Journal of Epidemiology > 1997 > 13 > 7 > 853-854
European Journal of Epidemiology > 1997 > 13 > 7 > 845-851
European Journal of Epidemiology > 1997 > 13 > 7 > 787-793
European Journal of Epidemiology > 1997 > 13 > 7 > 807-815
European Journal of Epidemiology > 1997 > 13 > 7 > 765-770
European Journal of Epidemiology > 1997 > 13 > 7 > 831-836
European Journal of Epidemiology > 1997 > 13 > 8 > 903-907
European Journal of Epidemiology > 1997 > 13 > 8 > 963-966
European Journal of Epidemiology > 1997 > 13 > 8 > 909-917
European Journal of Epidemiology > 1997 > 13 > 8 > 869-873
European Journal of Epidemiology > 1997 > 13 > 8 > 919-924