Innes NPT, Evans DJP, Stirrups DR. "The Hall Technique: a randomized controlled clinical trial of a novel method of managing carious primary molars in general dental practice; acceptability of the technique and outcomes at 23 months" BMC Oral Health 2007 7:18. https://www.biomedcentral.com/1472-6831/7/18
Kindelan, S. A.; Day, P.; Nichol, R.; Willmott, N.; Fayle, S. A. (2008-11-01). "UK National Clinical Guidelines in Paediatric Dentistry: stainless steel preformed crowns for primary molars". International Journal of Paediatric Dentistry. 18: 20–28. doi:10.1111/j.1365-263X.2008.00935.x. ISSN1365-263X. PMID18808544.
Innes NPT, Stirrups DR, Evans DJP, Hall N. "A Novel technique Using Preformed Metal Crowns for Managing Carious Primary Molars in General Practice – a retrospective analysis" Brit Dent J 2006; 200(8):451-4 & 444 https://www.nature.com/bdj/journal/v200/n8/abs/4813466a.html
Kindelan, S. A.; Day, P.; Nichol, R.; Willmott, N.; Fayle, S. A. (2008-11-01). "UK National Clinical Guidelines in Paediatric Dentistry: stainless steel preformed crowns for primary molars". International Journal of Paediatric Dentistry. 18: 20–28. doi:10.1111/j.1365-263X.2008.00935.x. ISSN1365-263X. PMID18808544.
Kindelan, S. A.; Day, P.; Nichol, R.; Willmott, N.; Fayle, S. A. (2008-11-01). "UK National Clinical Guidelines in Paediatric Dentistry: stainless steel preformed crowns for primary molars". International Journal of Paediatric Dentistry. 18: 20–28. doi:10.1111/j.1365-263X.2008.00935.x. ISSN1365-263X. PMID18808544.