1971
enthalten in: BMJ (Clinical research ed.) | 2020



1972
enthalten in: BMJ (Clinical research ed.) | 2020



1973
enthalten in: BMJ (Clinical research ed.) | 2020



1974
enthalten in: BMJ (Clinical research ed.) | 2020



1975
enthalten in: BMJ (Clinical research ed.) | 2020



1976
enthalten in: BMJ (Clinical research ed.) | 2020



1977
enthalten in: BMJ (Clinical research ed.) | 2020



1978
enthalten in: BMJ (Clinical research ed.) | 2020



1979
enthalten in: BMJ (Clinical research ed.) | 2020



1980
enthalten in: BMJ (Clinical research ed.) | 2020