![Pathogens | Free Full-Text | Heterogeneity and Risk of Bias in Studies Examining Risk Factors for Severe Illness and Death in COVID-19: A Systematic Review and Meta-Analysis Pathogens | Free Full-Text | Heterogeneity and Risk of Bias in Studies Examining Risk Factors for Severe Illness and Death in COVID-19: A Systematic Review and Meta-Analysis](https://pub.mdpi-res.com/pathogens/pathogens-11-00563/article_deploy/html/images/pathogens-11-00563-g003.png?1652243481)
Pathogens | Free Full-Text | Heterogeneity and Risk of Bias in Studies Examining Risk Factors for Severe Illness and Death in COVID-19: A Systematic Review and Meta-Analysis
![Energies | Free Full-Text | Barriers to Success: A Technical Review on the Limits and Possible Future Roles of Small Scale Gasifiers Energies | Free Full-Text | Barriers to Success: A Technical Review on the Limits and Possible Future Roles of Small Scale Gasifiers](https://www.mdpi.com/energies/energies-14-06711/article_deploy/html/images/energies-14-06711-g002.png)
Energies | Free Full-Text | Barriers to Success: A Technical Review on the Limits and Possible Future Roles of Small Scale Gasifiers
![Energies | Free Full-Text | Barriers to Success: A Technical Review on the Limits and Possible Future Roles of Small Scale Gasifiers Energies | Free Full-Text | Barriers to Success: A Technical Review on the Limits and Possible Future Roles of Small Scale Gasifiers](https://www.mdpi.com/energies/energies-14-06711/article_deploy/html/images/energies-14-06711-g004-550.jpg)
Energies | Free Full-Text | Barriers to Success: A Technical Review on the Limits and Possible Future Roles of Small Scale Gasifiers
![Energies | Free Full-Text | Olive Mill Wastewater Valorization through Steam Reforming Using Multifunctional Reactors: Challenges of the Process Intensification Energies | Free Full-Text | Olive Mill Wastewater Valorization through Steam Reforming Using Multifunctional Reactors: Challenges of the Process Intensification](https://www.mdpi.com/energies/energies-15-00920/article_deploy/html/images/energies-15-00920-g001.png)
Energies | Free Full-Text | Olive Mill Wastewater Valorization through Steam Reforming Using Multifunctional Reactors: Challenges of the Process Intensification
![Pathogens | Free Full-Text | Heterogeneity and Risk of Bias in Studies Examining Risk Factors for Severe Illness and Death in COVID-19: A Systematic Review and Meta-Analysis Pathogens | Free Full-Text | Heterogeneity and Risk of Bias in Studies Examining Risk Factors for Severe Illness and Death in COVID-19: A Systematic Review and Meta-Analysis](https://pub.mdpi-res.com/pathogens/pathogens-11-00563/article_deploy/html/images/pathogens-11-00563-g001-550.jpg?1652243493)
Pathogens | Free Full-Text | Heterogeneity and Risk of Bias in Studies Examining Risk Factors for Severe Illness and Death in COVID-19: A Systematic Review and Meta-Analysis
![Havaianas BRASIL LAYERS Marinho - Entrega gratuita | EllisonbronzeShops.pt ! - Sapatos Chinelos 13,50 € Havaianas BRASIL LAYERS Marinho - Entrega gratuita | EllisonbronzeShops.pt ! - Sapatos Chinelos 13,50 €](https://photos6.spartoo.pt/photos/124/12404433/12404433_1200_A.jpg)