1694
1792
1041
1458
1930
1036
1223
1544
1809
1867
1114
1738
1242
1776
1600
1441
1340
1806
1066
1422
1233
1522
1663
1526
1381
1296
1195
1874
1993
1061
1945
1886
1735
1667
1955
1798
1548
1644
1384
1683
1563
1261
1012
1195
1785
1598
1760
1014
1174
1296
1771
1317
1412
1529
1131
1563
1190
1453
1960
1208
1907
1474
1289
1160
1170
1593
1550
1258
1872
1759
1999
1697
1146
1392
1799
1851
1406
1371
1813
1159
1989
1924
1663
1501
1969
1537
1582
1156
1385
1834
1148
1890
1008
1250
1793
1805
1162
1320
1910
http://library.phcsuphan.ac.th/search.usisassist.php?fromrefcode=&keyword=%20Periodontics.มีปัญหาในการเชื่อมต่อ/Connection Problems (open url)