Keppel Hesselink, JM (2015). "The terms 'autacoid', 'hormone' and 'chalone' and how they have shifted with time". Autonomic and Autacoid Pharmacology. 35 (4): 51–8. doi:10.1111/aap.12037. PMID27028114.
Keppel Hesselink, JM (2015). "The terms 'autacoid', 'hormone' and 'chalone' and how they have shifted with time". Autonomic and Autacoid Pharmacology. 35 (4): 51–8. doi:10.1111/aap.12037. PMID27028114.