Hassall C, Trethowan W H
Br Med J. 1972 Mar 18;1(5802):717-8. doi: 10.1136/bmj.1.5802.717.
The number of deaths from suicide in the City of Birmingham has fallen dramatically over the past eight years. Investigation shows that this seems to be wholly due to a reduction in deaths due to domestic coal-gas.
在过去八年里,伯明翰市的自杀死亡人数大幅下降。调查显示,这似乎完全归因于家用煤气导致的死亡人数减少。