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Credit
Observations on some of the colouring matters of the bile and urine, with especial reference to their origin : and on an easy method of procuring haematin from blood / by C.A. Mac Munn. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.