https://riskcalc.org/PatientsEligibleForLumbarSpineSurgery/
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https://jhuspine2.shinyapps.io/Wound_Infection_Calculator/
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https://jhuspine3.shinyapps.io/Incidental_Durotomy_Calculator/
https://pubmed.ncbi.nlm.nih.gov/32357334/
https://jhuspine2.shinyapps.io/Estimated_Blood_Loss/
https://pubmed.ncbi.nlm.nih.gov/32603855/
https://jhuspine3.shinyapps.io/Discharge_Reop_Calculator
https://pubmed.ncbi.nlm.nih.gov/32360928/