I need help with Annotation of each of the sources?

1. https://www.healthaffairs.org/doi/10.1377/hlthaff.2019.01040
2. Fundamental health reform like ‘Medicare for All’ would help the labor market: Job loss claims are misleading, and substantial boosts to job quality are often overlooked. (n.d.). Economic Policy Institute. https://www.epi.org/publication/medicare-for-all-would-help-the-labor-market/
3. Paulson, M. (2020, August 13). Medicare for All: Comparison of Financing Options Penn Wharton Budget Model. Penn Wharton Budget Model. https://budgetmodel.wharton.upenn.edu/issues/2020/1/30/medicare-for-all-background
4. Paulson, M. (2020, August 13). Senator Sanders' Medicare for All (S.1129): An Integrated Analysis Penn Wharton Budget Model. Penn Wharton Budget Model. https://budgetmodel.wharton.upenn.edu/issues/2020/1/30/sanders-medicare-for-all