全文获取类型
收费全文 | 1159篇 |
免费 | 41篇 |
国内免费 | 2篇 |
专业分类
耳鼻咽喉 | 17篇 |
儿科学 | 18篇 |
妇产科学 | 65篇 |
基础医学 | 103篇 |
口腔科学 | 35篇 |
临床医学 | 127篇 |
内科学 | 207篇 |
皮肤病学 | 63篇 |
神经病学 | 49篇 |
特种医学 | 25篇 |
外科学 | 154篇 |
综合类 | 42篇 |
一般理论 | 6篇 |
预防医学 | 155篇 |
眼科学 | 16篇 |
药学 | 102篇 |
肿瘤学 | 18篇 |
出版年
2017年 | 8篇 |
2015年 | 7篇 |
2013年 | 21篇 |
2012年 | 6篇 |
2010年 | 17篇 |
2009年 | 20篇 |
2006年 | 7篇 |
2001年 | 13篇 |
1999年 | 14篇 |
1998年 | 28篇 |
1997年 | 54篇 |
1996年 | 59篇 |
1995年 | 39篇 |
1994年 | 36篇 |
1993年 | 32篇 |
1992年 | 24篇 |
1991年 | 19篇 |
1990年 | 31篇 |
1989年 | 31篇 |
1988年 | 23篇 |
1987年 | 33篇 |
1986年 | 21篇 |
1985年 | 20篇 |
1984年 | 29篇 |
1983年 | 25篇 |
1982年 | 16篇 |
1981年 | 19篇 |
1980年 | 16篇 |
1979年 | 24篇 |
1978年 | 15篇 |
1977年 | 19篇 |
1976年 | 19篇 |
1974年 | 11篇 |
1973年 | 7篇 |
1972年 | 5篇 |
1971年 | 9篇 |
1970年 | 6篇 |
1969年 | 5篇 |
1963年 | 7篇 |
1961年 | 7篇 |
1960年 | 5篇 |
1959年 | 35篇 |
1958年 | 57篇 |
1957年 | 45篇 |
1956年 | 50篇 |
1955年 | 45篇 |
1954年 | 33篇 |
1949年 | 30篇 |
1948年 | 38篇 |
1946年 | 5篇 |
排序方式: 共有1202条查询结果,搜索用时 31 毫秒
101.
Pharmacokinetics of midazolam in Vietnamese subjects 总被引:2,自引:0,他引:2
KR BALSON DJ MORGAN BH RICHMOND ME McALINDON SL ELLIOTT ND YEOMANS 《Journal of gastroenterology and hepatology》1996,11(10):1177-1180
102.
103.
COMPARISON OF FOUR SUBARACHNOID SOLUTIONS IN A NEEDLE-THROUGH-NEEDLE TECHNIQUE FOR ELECTIVE CAESAREAN SECTION 总被引:2,自引:0,他引:2
RANDALLS B.; BROADWAY J. W.; BROWNE D. A.; MORGAN B. M. 《British journal of anaesthesia》1991,66(3):314-318
We have used both spinal and extradural anaesthesia with a 26-gauge,long spinal needle through a 16-gauge Tuohy needle for electiveCaesarean section. Four different subarachnoid solutions ofbupivacaine were compared: 0.5% heavy bupivacaine alone, orwith adrenaline, fentanyl or adrenaline and fentanyl. The incidenceof complications and time of regression of the sensory blockwere analysed. The technique is recommended because it allowsrapid onset of anaesthesia and the advantages of an extraduralcatheter. The subarachnoid solution of choice was 0.5% heavybupivacaine 12.5 mg with fentanyl 10 µg 相似文献
104.
Why do Mothers Consult when their Children Cough? 总被引:2,自引:1,他引:1
Mothers' beliefs and evaluations of their child's illness werestudied in a group of 30 mothers who had con sulted a generalpractitioner because of a cough. Data were collected by tape-recordedsemi-structured interviews conducted in their own homes. A majorconcern for mothers was their fear that their child was goingto die, usually because of choking on phlegm or vomit, but alsothrough an asthma attack or cot death. Mothers were also worriedthat their child would develop long-term chest damage. Particularlyimportant in mothers' assessments were their experience of disturbedsleep because of worries about their child dying at night andtheir belief that the cough was on the chest whichgave rise to worries about dying through choking on phlegm andlong-term chest damage. Antibiotics were commonly believed tobe required to break up phlegm which might cause the long-termdamage or the choking and death. 相似文献
105.
106.
Gratifying results have followed the application of an ointment containing the water-soluble derivatives of chlorophyll (Chloresium) in a hydrophilic base in fifty indolent ulcers.Subjective relief of symptoms was expressed by every patient during the course of treatment.Objective evidence of healing was noted to an appreciable degree in all except three patients.We believe that chlorophyll therapy should have a place in the management of chronic ulcers although it cannot be used to the exclusion of other recognized methods of medical and surgical management. 相似文献
107.
R.J. MORGAN Jr T.W. SYNOLD D. GANDARA† F. MUGGIA‡ S. SCUDDER† E. REED§ K. MARGOLIN J. RASCHKO L. LEONG S. SHIBATA M. TETEF S. VASILEV K. McGONIGLE J. LONGMATE¶ Y. YEN W. CHOW G. SOMLO M. CARROLL & J.H. DOROSHOW 《International journal of gynecological cancer》2007,17(2):373-378
The purpose of this study was to estimate the response rate of 26-h continuous infusion cyclosporine A (CSA) combined with carboplatin (CBDCA) and subcutaneous alpha-interferon (IFN), in recurrent ovarian cancer (OC), and to measure their effects on CBDCA pharmacokinetics. OC patients relapsing following platinum-based chemotherapy received CBDCA area under the curve (AUC 3) with CSA and IFN, every 3 weeks. The pharmacokinetics of CSA and CBDCA were determined in a subset of patients. Thirty patients received 84 courses of therapy. Three partial responses were observed. Nine patients were stable for >4 months. Toxicity was similar to that observed in our previously reported phase I study and consisted of myelosuppression, nausea, vomiting, and headache. The mean end of infusion CSA level (high-performance liquid chromatographic assay [HPLC]) was 1109 +/- 291 microg/mL (mean +/- SD). CBDCA pharmacokinetics revealed a measured AUC of 3.61 versus a targeted AUC of 3, suggesting a possible effect of IFN on CBDCA levels versus errors in the estimation of CBDCA clearance using measured creatinine clearance. Steady-state levels of >1 microg/mL CSA (HPLC assay) are achievable in vivo. Insufficient clinical resistance reversal was observed in this study to warrant further investigation of this combination. 相似文献
108.
109.
MALCOLM R. POWELL JULIETTE MORGAN JEANNETTE GUARNER & DANIEL G. COLLEY 《Parasite immunology》1998,20(10):463-471
Profiles of cytokine mRNA expression were examined by semiquantitative RT-PCR in the hearts of DBA/2 (pathopermissive) and B10.D2 (pathoresistant) mice during infection with the Brazil strain of Trypanosoma cruzi . The levels and time-course profiles of IFNγ, IL-1β and IL-10 mRNA expression were similar in each strain. TNFα, iNOs, and IL-13 mRNA expression peaked at comparable levels and times after infection in each strain, but declined more rapidly in B10.D2 than in DBA/2 mice. Peak IL-2 mRNA levels were also similar between the two strains, but occurred earlier in DBA/2 than in B10.D2 mice. Levels of IL-4, IL-6 and IL-12 mRNA were significantly higher in DBA/2 than in B10.D2 mice from day 10 through day 50 of infection. With the exception of IL-1β, which was expressed constitutively in both strains, the levels of mRNA of all other cytokines examined reached their peak no later than day 20 and declined significantly by day 50 after infection. The inflammatory infiltrate paralleled the latter cytokines; starting at day 10 in DBA/2 mice and at day 15 in the B10.D2 s, peaking between days 20 and 30 in both strains, decreasing to minimal levels by day 50 in the pathoresistant mice, but maintaining a mild amount through day 70 in the pathopermissive strain. The inflammation was composed mostly of lymphocytes and histiocytes throughout the entire process. These data demonstrate differences in the profiles of cytokine mRNA that may be related to the differential degree of cardiac pathology that develops in these two strains of mice upon infection with T. cruzi. 相似文献
110.