WALKER J S, MARGOLIS F J, TEATE H L, WEIL M L, WILSON H L
Science. 1963 May 24;140(3569):890-1. doi: 10.1126/science.140.3569.890.
Estimates of daily total fluid intake and of tap-water consumption of normal children were made in four dissimilar geographic areas in the United States. (Total fluid intake increased and, relatively speaking, tap-water consumption decreased, with age.) Of basic importance in fluoridation programs was the observation that even older children rarely drank as much as 500 ml (about 1 pint) of tap water daily.
在美国四个不同地理区域对正常儿童的每日总液体摄入量和自来水消耗量进行了估算。（随着年龄增长，总液体摄入量增加，相对而言，自来水消耗量减少。）在氟化项目中至关重要的一点是观察到，即使是年龄较大的儿童，每天饮用的自来水也很少能达到500毫升（约1品脱）。
