1612
1067
1902
1026
1815
1852
1391
1252
1352
1223
1819
1992
1358
1548
1302
1075
1971
1091
1006
1012
1994
1603
1365
1654
1081
1258
1845
1292
1867
1398
1652
1081
1617
1494
1291
1445
1372
1670
1904
1454
1200
1886
1961
1247
1017
1996
1119
1291
1250
1360
1293
1827
1854
1401
1820
1742
1567
1064
1805
1354
1958
1491
1426
1815
1568
1218
1981
1526
1541
1592
1783
1381
1962
1877
1758
1588
1580
1793
1861
1682
1782
1290
1945
1597
1744
1846
1523
1875
1672
1249
1982
1144
1916
1567
1544
1205
1149
1088
1312
http://library.phcsuphan.ac.th/search.usisassist.php?fromrefcode=&keyword=%20Obstetricsมีปัญหาในการเชื่อมต่อ/Connection Problems (open url)