1. Walker, M. B. (letter) Treatment of myasthenia gravis with physostigmine. Lancet 1936, pp. 1200–1201, June 2, 1934.
2. Pritchard, E. A. B. and Walker, M. B. The effect of prostigmin on the symptoms and on the myogram in myasthenia gravis. Proc. Physiol. Soc. 84: 35P-36P, (March 16) 1935
3. Hamill, P and Walker, M. B. The action of ‘prostigmin’ (Roche) in neuro-muscular disorders. Proc. Physiol. Soc. 84: 36P-37P, (March 16) 1935.
4. Walker, M. B. (MRCP) Case showing the effect of Prostigmin on myasthenia gravis. Proc. Royal Soc. of Med. 28 (Part I): 759–761, April 1935.
5. Laurent, L. P. E. and Walker, M. B. Oral and parental administration of Prostigmin and its analogues in myasthenia gravis. Lancet 1: 1457–1459, (June 27) 1936.