Jonathan Mason Warren was a Boston medical doctor, believed to have been the first to administer anesthesia to a child during surgery. He was the son of John Collins Warren - in this photo J. M. Warren (sitting, third from right) with other members of the Boston Society for Medical Improvement, about 1850

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Keywords: americano, anestesia, anesthesia, boston, della, di, doctor, improvement, jonathan, mason, medical, medici, medico, members, membri, phisicians, society, warren