The closest I've found to the NHS sites are published by Mayo Clinic in the US... https://www.mayoclinic.org/diseases-conditions https://www.mayoclinic.org/dise

The closest I've found to the NHS sites are published by Mayo Clinic in the US... https://www.mayoclinic.org/diseases-conditions https://www.mayoclinic.org/diseases-conditions Still not perfect, but I've found it more useful than WebMD.