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Alejandro Callejas

Japanese Ministry of the Environment

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Severe Lymphopenia as a Predictor of COVID-19 Mortality in Immunosuppressed Patients.

2021 Journal of Clinical Medicine
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Bacterial infections in patients hospitalized with COVID-19.

2021 Internal and Emergency Medicine
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Un Plan Director para San Andrés y Providencia

2017
- Alejandro Callejas
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Formulating and implementing climate change laws and policies in the Philippines, Mexico (Chiapas), and South Africa: a local government perspective

2013 Local Environment
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