There is no little satisfaction in observing the amount of substantial investigation on the toxemias of pregnancy that has been accomplished by Americans. Probably this is, in part, due to the fact that the most useful methods of quantitative urinalysis, on which these investigations largely depend, have been devised in this country by Folin, for it is the usual history of research that new methods are the starting point of advances in knowledge. As is to be expected, the results of the various investigators, and particularly the conclusions drawn from their results, have not been entirely in agreement. In a critical review of the recorded work on the subject of pernicious vomiting of pregnancy, to which are added some new observations, F. P. Underhill1 analyzes clearly the existing situation and reaches conclusions which may serve to put the entire matter on a more substantial basis than it has heretofore
PERNICIOUS VOMITING OF PREGNANCY. JAMA. 1910;LIV(7):538. doi:10.1001/jama.1910.02550330036003
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