(1) Neuromodulation: The Biochemical Control of Neuronal Excitability Leonard K. Kaczmarek; Irwin B. Levitan ISBN: 9780195040975 Oxford University Press View at publisher
(2) The Cholera Years: The United States in 1832, 1849, and 1866 Rosenberg, Charles E. ISBN: 9780226726779 University of Chicago Press View at publisher