J Physiol. 1917 Dec 06;51(6):432-9. doi: 10.1113/jphysiol.1917.sp001810.
The Journal of physiology
D J Pol
PMID: 16993370 PMCID: PMC1402711 DOI: 10.1113/jphysiol.1917.sp001810
[No abstract available.]