1. https://eprognosis.ucsf.edu/schonberg.php
. Last Accessed 7/20/2019.
2. http://media.nmfn.com/tnetwork/lifespan/#0
. Last Accessed 7/20/2019.
3. https://www.livingto100.com/calculator
. Last Accessed 7/20/2019.
4. https://eprognosis.ucsf.edu/mitchell.php
. Last Accessed 7/20/2019.
5. https://reference.medscape.com/calculator/meld-score-end-stage-liver-disease
. Last Accessed 7/20/2019.