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The history of the Vaillant Group dates back to 1874, when Johann Vaillant set up a master fitter's business. In 1894 Johann Vaillant patented a new "closed-system" gas-fired bathroom boiler. [3] This was the first device that made it possible to heat water hygienically, without contaminating it with combustion gases.
The number of drinking problems is spread out along a scale, just like IQ and blood pressure; there is not a cluster of alcoholics at the top end of the scale. [25] Vaillant compiled indicators of alcoholism from many sources, medical and sociological, and applied them to the Core City drinkers. Possible criteria included [26] frequency of ...
George Eman Vaillant (/ v ə ˈ l æ n t /; born June 16, 1934) is an American psychiatrist and Professor at Harvard Medical School and Director of Research for the Department of Psychiatry, Brigham and Women's Hospital.