共 50 条
- [1] Clostridium difficile - More Difficult Than Ever (vol 359, 1932, 2008) [J]. NEW ENGLAND JOURNAL OF MEDICINE, 2010, 363 (16): : 1585 - 1585
- [4] ELECTRICAL INDUSTRY - FORECASTS MORE DIFFICULT THAN EVER [J]. METALL, 1975, 29 (10): : 1038 - 1043
- [5] Is Clostridium difficile infection (Cdi) more difficult to eradicate in patients with diverticulosis? [J]. AMERICAN JOURNAL OF GASTROENTEROLOGY, 2008, 103 : S195 - S195