@article{005336653, title = "Efficiency in clinical trials of caries preventive agents and methods", author = "O&apos and mullane, D.M.", year = "1976", journal = "Community Dentistry and Oral Epidemiology", volume = "4", number = "5", pages = "190-194", issn = "0301-5661", doi = "10.1111/j.1600-0528.1976.tb00982.x", url = "https://eurekamag.com/research/005/336/005336653.php" }