1678
1680
1374
1349
1088
1799
1654
1406
1479
1508
1775
1311
1435
1150
1776
1816
1735
1627
1864
1608
1352
1126
1766
1204
1038
1292
1061
1192
1924
1705
1488
1153
1016
1333
1758
1832
1347
1115
1491
1357
1031
1341
1252
1589
1877
1875
1815
1589
1810
1711
1863
1677
1500
1323
1112
1519
1330
1236
1394
1757
1119
1637
1660
1765
1147
1037
1017
1221
1507
1508
1225
1763
1888
1137
1825
1553
1526
1879
1415
1656
1119
1573
1408
1655
1339
1534
1190
1119
1296
1359
1151
1065
1101
1864
1588
1078
1213
1844
1446
http://library.phcsuphan.ac.th/search.usisassist.php?fromrefcode=&keyword=%20Periodontium%20examination%20questionsมีปัญหาในการเชื่อมต่อ/Connection Problems (open url)