51

Variations in average length of stay among acute hospitals

Year:
1978
Language:
english
File:
PDF, 446 KB
english, 1978
56

Temporal and seasonal variation in the occurrence of chemical incidents

Year:
2004
Language:
english
File:
PDF, 149 KB
english, 2004
64

School closures and influenza: systematic review of epidemiological studies

Year:
2013
Language:
english
File:
PDF, 990 KB
english, 2013