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Depression, anxiety and PTSD symptoms before and during the COVID-19 pandemic in the UK
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- Journal:
- Psychological Medicine / Volume 53 / Issue 12 / September 2023
- Published online by Cambridge University Press:
- 26 July 2022, pp. 5428-5441
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- Article
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Linear Transformations on Algebras of Matrices: The Invariance of the Elementary Symmetric Functions
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- Journal:
- Canadian Journal of Mathematics / Volume 11 / 1959
- Published online by Cambridge University Press:
- 20 November 2018, pp. 383-396
- Print publication:
- 1959
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