. 2020 Jul 4;18(2):a44037. doi: 10.3290/j.ohpd.a44037
© 2020 by Quintessence Publishing Co Inc.
this work is licensed under the creative commons attribution 4.0 international license. to view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ or send a letter to creative commons, po box 1866, mountain view, ca 94042, usa.
Fig 1.
Distribution of patients by age group.