 Encopresis: Observations on Somatic, Pneumoencephalographic, Electroencephalographic, and Psychological Aspects JAMA JAMA NetworkJAMA. 1963;18411:190. doi:10.1001jama.1963.03700240138167Encopresis: Observations on Somatic, Pneumoencephalographic, Electroencephalographic, and Psychological Aspects. JAMA. 1963;18411:190. doi: 