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Beatty, Thomas Edward (1869). "Address In Midwifery, Delivered At The Thirty-Seventh Annual Meeting Of The British Medical Association, Held In Leeds, July 27th, 28th, 29th, And 30th, 1869". The British Medical Journal. 2 (449): 137–143. doi:10.1136/bmj.2.449.137. JSTOR25217099. S2CID71208772.
H., Davies, N. J.; N., Cashman, Jeremy; B.)., Rushman, G. B. Geoffrey (2005-01-01). Lee's synopsis of anaesthesia. Elsevier/Butterworth Heinemann. pp. 660–662. OCLC61303532.{{cite book}}: CS1 maint: multiple names: authors list (link)