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		International Journal of Oral Biology :: Vol.42 No.4 pp.163-168 DOI:https://doi.org/10.11620/IJOB.2017.42.4.163 Open abstract    
International Journal of Oral Biology :: Vol.42 No.4 pp.163-168
			DOI:https://doi.org/10.11620/IJOB.2017.42.4.163
			 
			