The clinical records used in this experiment belong to 193 patients located in the following cities: Montemorelos (140 patients), Monterrey (2 patients), Linares (4 patients), Solistahuacan (1 patient), Allende (9 patients), Mexico City (1 patient), Alamo (1 patient), Tampico (1 patient), Hermosillo (1patient), Tamaulipas (1患者),Coatzacoalcos(1例患者),坎昆(1例患者),CD。Madero (1 patient), Tamasopo (1 patient), Altamira (1 patient), General Teran (3 patients), Anahuac (1 patient), Chihuahua (1 patient), Elkhart (1 patient), Santiago Tuxtla (1 patient), Camargo (1 patient), Cadereyta (1 patient), Chula Vista (1 patient), Mezcalapa (1患者),射频(1名患者),NavoJoa(1例患者),佐治亚州(1名患者),河滨(1名患者),卡波卡(1名患者)。在牙科记录中未记录11例患者的位置。由于该诊所已更改了用于记录临床记录的纸质表格的几倍,因此我们决定从最新的193个临床记录中进行样本进行实验,该记录使用相同的纸张形式。