Massing W, Angermeyer M C
Arch Psychiatr Nervenkr (1970). 1983;233(2):139-50. doi: 10.1007/BF00343434.
The admission data of the psychiatric unit of the Hannover Medical School for the period 1973 to 1981 were studied by time-series analysis (Box and Jenkins 1970). The total number of admissions as well as subgroups formed according to diagnosis, sex and age did not show any seasonal variations.