共 50 条
- [1] Helicobacter pylori serostatus in backpackers following travel to tropical countries [J]. AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, 1998, 58 (03): : 305 - 308
- [3] The assessment of fitness to travel [J]. OCCUPATIONAL MEDICINE-OXFORD, 2000, 50 (08): : 566 - 571