Henry Edward Armstrong, D. Hy., M.R.C.S
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Henry Edward Armstrong, D. Hy., M.R.C.S. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Henry Edward Armstrong, D. Hy., M.R.C.S. Wellcome Collection. Source: Wellcome Collection.