John W. Knutson, Wallace D. Armstrong, Floyd M. Feldman, The Effect of Topically Applied Sodium Fluoride on Dental Caries Experience: IV. Report of Findings with Two, Four and Six Applications, Public Health Reports (1896-1970), Vol. 62, No. 12 (Mar. 21, 1947), pp. 425-430
No takes yet. Share an insight, caveat, or question.
Knutson et al. (1947) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context:
More from Public Health Reports (1896-1970)