1. 9 Bartholow R. A Practical Treatise on Materia Medica and Therapeutics. 5th edn. New York: Appleton, 1885: p. 318.
2. 10 Bartholow R. In: Kelly HA, Burrage WL, eds. Dictionary of American Medical Biography. New York: D Appleton and Co., 1928: p. 64.