Not solicitors or a clothes shop - but doctors.
This freely-accessible paper by Sir Richard Bayliss and its discussion of The Citadel by A J Cronin seems well worth a read by anyone interested in the history of thyroid and "myxoedema madness".
ncbi.nlm.nih.gov/pmc/articl...
A copy of The Citadel is available at about two pounds including postage in the UK from abebooks - and I am sure other copies abound. Well worth reading, in my opinion.