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排序方式: 共有110条查询结果,搜索用时 15 毫秒
91.
92.
Metal ions in body fluids after arthroplasty 总被引:1,自引:0,他引:1
Ugo E. Pazzaglia Claudio Minoia Gualtiero Gualtieri Italo Gualtieri Carlo Riccardi Luciano Ceciliani 《Acta orthopaedica》1986,57(5):415-418
We measured levels of metal ions in urine and plasma of 17 patients 7-15 years after they had a Co-Cr-Mo alloy total hip replacement. They had higher levels of cobalt and chromium than controls. No case of skin sensitivity to the investigated metals was observed. The values of cobalt and chromium in plasma and urine were considerably lower than in professionally exposed groups and do not represent a toxic hazard for the patients. 相似文献
93.
In a group of 23 male workers exposed to lead stearate the levels of lead in whole blood and plasma were determined and compared to those obtained from a group of 23 subjects exposed to inorganic lead compounds. The mean values for lead in whole blood were similar in both groups, while the mean lead concentration in plasma was 0.1729 (SD 0.0677) mumol/l for those exposed to lead stearate and 0.0936 (SD 0.0577) mumol/l for those exposed to other lead compounds. The difference was highly significant. The percentage ratio for lead in plasma to lead in whole blood, which can be considered a "bioavailability index" for lead, proved to be two times higher for stearate workers than for subjects exposed to inorganic lead compounds. The data suggest that the different chemical properties of absorbed lead stearate may cause a different distribution of the metal in different blood compartments, the plasma compartment having a higher affinity for lead stearate than for other lead compounds. Because the plasma fraction has a greater bioavailability, lead stearate could induce toxic effects that differ (possibly being severer) from those caused by other lead compounds at similar absorbed doses. 相似文献
94.
Giorgio Bozzi Davide Mangioni Francesca Minoia Stefano Aliberti Giacomo Grasselli Laura Barbetta Valeria Castelli Emanuele Palomba Laura Alagna Andrea Lombardi Riccardo Ungaro Carlo Agostoni Marina Baldini Francesco Blasi Matteo Cesari Giorgio Costantino Anna Ludovica Fracanzani Nicola Montano Alessandra Bandera 《The Journal of allergy and clinical immunology》2021,147(2):561-566.e4
95.
96.
F Malberti M Surian F Poggio C Minoia A Salvadeo 《American journal of kidney diseases》1988,12(6):487-491
The efficacy and safety of calcium carbonate as a phosphate binder was evaluated in 20 patients on chronic hemodialysis who had previously received aluminum hydroxide. During the control period the patients were on aluminum hydroxide and calcitriol therapy and had plasma phosphorus levels less than 6 mg/dL (4.95 +/- 0.8 mg/dL). Aluminum hydroxide was then discontinued and no phosphate binder was prescribed for 1 month. Every patient developed hyperphosphatemia so that calcium carbonate treatment was begun and calcitriol dose was adjusted in relation to plasma calcium changes. After 24 months of calcium carbonate therapy, plasma phosphorus was 4.85 +/- 0.7 mg/dL, using a daily dose of calcium carbonate of 2.57 +/- 1.3 g (range, 1 to 6 g). The daily dose per patient of calcitriol was not different from that prescribed during the control period, but in five patients calcitriol was permanently withdrawn for hypercalcemia. At the end of the study plasma calcium, magnesium, bicarbonate, alkaline phosphatase, and parathyroid hormone values were unchanged in comparison with the control period, whereas a significant reduction in plasma aluminum and plasma aluminum increase induced by deferoxamine infusion was observed. The frequency of hypercalcemic and hyperphosphatemic episodes during the last 12 months of calcium carbonate therapy (6.2% and 16.6%, respectively) was not different from that observed during the 12 months on aluminum hydroxide therapy preceding the control period (4.5% and 14.7%, respectively). It was concluded that calcium carbonate is effective in the control of hyperphosphatemia and secondary hyperparathyroidism in patients on chronic hemodialysis and that the incidence of hypercalcemia is low when the daily dosage is less than 6 g. 相似文献
97.
Immunomodulatory effects of the herbicide propanil on cytokine production in humans: In vivo and in vitro exposure 总被引:1,自引:0,他引:1
98.
Minoia C Ronchi A Pigatto PD Guzzi G 《Environmental health perspectives》2011,119(4):A159; author reply A159-A159; author reply A160
99.
G Leandro G Colloredo Mels M Minoia O G Manghisi M A Di Nolfo G B Moretti 《The Italian journal of gastroenterology》1991,23(7):416-420
Of 282 consecutive ascites prospectively collected in 54 months, Spontaneous Bacterial Peritonitis (SBP) was diagnosed in 8.5% of the cases, "probable" SBP in 31.1%, Bacteriascites (BA) in 3.5% and Sterile Ascites (SA) (negative ascitic fluid culture with PMN less than 250/mm3) in 74.8%. Escherichia Coli (41.6%) and Staphylococcus Epidermidis (60%) were the most frequent pathogens isolated in patients with SBP and BA, respectively. With regards to in-hospital mortality, 18% of patients with BA and 50% with SBP died; the mortality seemed to be related to the degree of hepatic and renal damage, to a higher peripheral and ascitic WBC concentration and to a lower pH of ascitic fluid (FA). When the comparative analysis was applied to the four groups of ascites, a different distribution of clinical signs and biohumoral parameters appeared. As a matter of fact, abdominal pain, fever and rebound tenderness resulted significantly more frequent in SBP and "probable" SBP. Furthermore, the mean values of peripheral and ascitic WBC concentration, of serum creatinine and of ALT were statistically higher in SBP and "probable" SBP than in SA and BA groups. The strict relationship, both symptomatologic and biochemical, between SA and BA on the one hand and between "probable" SBP and SBP on the other, prompted us to conclude that "probable" SBP and SBP represent different patterns of the same disease. Therefore, the subclassification in the four groups outlined above would not be in accordance with the clinical practice and could give rise to the physician's confusion and uncertainty. 相似文献
100.
Malassezia spp. are lipophilic yeasts that are part of the normal cutaneous microflora and sometimes act as pathogens causing dermatitis. This study investigated the interactions occurring between beta-endorphin and phospholipase activity in isolates of M. pachydermatis in dogs presenting cutaneous lesions. Phospholipase production was evaluated and quantified on 144 isolates suspended in Dixon broth to which different beta-endorphin concentrations (from 600 to 0.6 pM) were added. The isolates were divided into three groups: group A comprised isolates from lesional skin of dogs with dermatitis confined to one site, group B consisted of isolates from the healthy skin of the same dogs with localized lesions, and group C was made up of isolates from assorted skin sites of healthy dogs. A statistically higher phospholipase activity than that of the controls was recorded in group B at all tested beta-endorphin concentrations. In groups A (Pz=0.62) and C (Pz=0.62) phospholipase activity was statistically higher than the controls only at a concentration of 600 pM. This study suggests that beta-endorphin plays an important role in the production of phospholipase in M. pachydermatis isolates and provides evidence that beta-endorphin concentrations affect the number but not the Pz value of phospholipase-producing isolates. B-endorphin concentrations may play a relevant role in inducing M. pachydermatis cell differentiation towards the production or non-production of phospholipase. 相似文献