Composite variable bias: causal analysis of weight outcomes.

Background: Researchers often use composite variables (e.g., BMI and change scores).

Learnings from COVID-19 for managing humanitarian supply chains: systematic literature review and future research directions.

The COVID-19 pandemic has been experienced as the most significant global disaster after the Spanish flue in 1918. Millions of people lost their life due to a lack of preparedness and ineffective strategies for managing humanitarian supply chains (HSC). Based on the learnings from this pandemic outbreak, different strategies for managing the effective HSC have been explored in the present context of pandemics through a systematic literature review.