"Phenobarbital : Efficacy of Phenobarbital." Epilepsy and Seizure Information for Healthcare Professionals. Web. <http://professionals.epilepsy.com/medications/p_phenobarbital_efficacy.html>.
"Phenobarbital for Epilepsy." HealthLink BC Home Page. Web. <http://www.healthlinkbc.ca/kb/content/drugdetail/hw110027.html#hw110029>.
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evaluation, advice, diagnosis or treatment by a health care professional.