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1.
《Clinical breast cancer》2022,22(6):560-566
BackgroundIn the United States, Europe, and Asia, a consensus has been reached that there is a higher risk of breast cancer in high density breasts. However, there are some contrary reports that suggest the absence of an association between breast composition and breast cancer subtype; thus, there is conflicting evidence. The purpose of this study was to investigate trends in the incidence of breast cancer subtypes according to breast composition and analyze the survival rates in Japanese women.Patients and MethodsBetween 2007 and 2008, 1258 Japanese patients with invasive breast cancer who underwent mammography and obtained a pathological diagnosis in our institution were included in the study. We compared cancer subtypes with breast composition types (dense and non-dense breast), and classified them based on initial mammography findings. Information on 5- and 10-year survival rates was collected by chart review for patients with dense and nondense breasts. Statistical analysis was performed using the Pearson's chi-square test for breast composition and cancer subtype. The effect of breast composition on mortality was examined using a multivariate Cox proportional hazards model, and adjusted hazard ratios were calculated.ResultsNo significant difference was found between breast cancer subtype and breast composition (P = .08). Five-year (log-rank test, P = .09) and 10-year (log-rank test, P = .31) survival rates were not significantly different between breast composition types.ConclusionThere was no significant association between breast composition and cancer subtypes. There was also no significant difference in the prognosis between patients with and without dense breasts.  相似文献   
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Preterm birth (PTB) is commonest cause of perinatal mortality and morbidity in multiple pregnancies with significant long-term sequelae. The etiology of PTB is multifactorial. Universal screening by a transvaginal assessment of cervical length (CL) at midtrimester scan is recommended for all women with twin pregnancies. Women with CL ≤ 25 mm should be offered prophylactic vaginal progesterone to mitigate the risk of PTB. Other modalities like home uterine activity monitoring, digital cervical examination, fetal fibronectin (FFN) assessment, and screening for infections are not recommended. History-indicated cerclage is not advised in unselected twin pregnancies, but a combination of physical examination-indicated cerclage, tocolytics, and antibiotics may be considered in twin pregnancies with a dilated cervix prior to 24 weeks’ gestation. Routine use of cervical pessary is not advised and should be limited to research settings. Neither transvaginal CL nor FFN assessment is supported by evidence to predict the risk of PTB in symptomatic women with multiple pregnancies. More research is warranted to develop and validate algorithms to predict PTB to provide individualized care to these high-risk pregnancies.  相似文献   
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目的探讨坤泰胶囊联合黄体酮对围绝经期功能失调性子宫出血患者性激素水平的影响。方法126例围绝经期功能失调性子宫出血患者随机分为两组各63例,对照组采用黄体酮治疗,观察组采用坤泰胶囊联合黄体酮治疗,比较两组治疗前后的肾阴虚证症状评分及性激素水平。结果治疗3个月后,观察组的盗汗、失眠、腰膝酸软、耳鸣、五心烦热评分均显著低于对照组(P<0.05)。治疗3个月后,观察组的血清FSH、LH水平均显著低于对照组,E2水平显著高于对照组(P<0.05)。结论坤泰胶囊联合黄体酮可有效改善围绝经期功能失调性子宫出血患者的肾阴虚证症状,调节患者的性激素水平。  相似文献   
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王亚飞  洪名云 《安徽医学》2022,43(5):539-544
目的 探讨卵泡期长效长方案中扳机日血清孕酮水平对胚胎质量、妊娠结局的影响,探索导致扳机日血清孕酮水平升高的影响因素。方法 对安徽医科大学附属妇幼保健院生殖医学中心511例行卵泡期长效长方案降调节促排卵方案助孕周期资料进行回顾性分析,以扳机日血清孕酮1.5 ng/mL为界值分为A组(孕酮 ≥ 1.5 ng/mL)与B组(孕酮<1.5 ng/mL),比较A、B组获卵数及胚胎质量的差异;再将511例周期资料中所有新鲜胚胎移植周期根据孕酮水平分为A1组(孕酮 ≥ 1.5 ng/mL)与B1组(孕酮<1.5 ng/mL),比较两组妊娠结局差异;使用二元logistic回归分析探讨影响扳机日血清孕酮升高的相关因素,应用受试者工作特征(ROC)曲线分析危险因素的预测价值。结果 A、B组间正常受精率、优质胚胎率差异无统计学意义(P>0.05);A组的获卵数(14.11±5.47)枚、成熟卵子数(11.77±4.79)枚、正常卵子受精数[(9.35±4.70)个]高于B组获卵数(9.46±4.31)枚、成熟卵子数(7.81±3.94)枚、正常卵子受精数[(6.28±3.44)个],差异有统计学意义(P<0.05)。A1组胚胎着床率(21.21%)、临床妊娠率(31.25%)均低于B1组胚胎着床率(42.00%)、临床妊娠率(57.89%),差异有统计学意义(P<0.05)。身体质量指数(OR=0.873,95%CI:0.808~0.942)和获卵数(OR=1.226,95%CI:1.169~1.286)均是扳机日血清孕酮升高的影响因素(P<0.05)。ROC曲线分析显示,身体质量指数可用于诊断扳机日血清孕酮水平升高,其曲线下面积为0.606(95%CI:0.557~0.656),约登指数最大值所对应的身体质量指数值为21.38 kg/m2,该值的敏感度为58.9%,特异度为58.5%。结论 扳机日血清孕酮升高会降低着床率及临床妊娠率,但不影响胚胎质量。身体质量指数和获卵数是扳机日血清孕酮水平升高的影响因素。  相似文献   
5.
目的 探讨孕激素受体膜组分1(progesterone receptor membrane components 1,PGRMC1)在激素治疗中促进乳腺癌细胞增殖的作用机制。 方法 雌激素受体(estrogen receptor,ER)阳性的乳腺癌MCF7细胞经雌孕激素处理后,用过表达PGRMC1、敲降ER抑制因子PHB1(shPHB1-1和shPHB1-2)及其相应阴性对照的慢病毒液进行感染。采用免疫共沉淀联合质谱分析及GST pull-down实验检测PGRMC1与PHB复合体(PHB1和PHB2)的相互作用,免疫印迹法和RT-qPCR检测PHB1、PHB2和PGRMC1的表达情况,CCK-8和EDU实验检测细胞的增殖能力,流式细胞术检测细胞周期情况,RT-qPCR检测ER信号通路下游靶基因THBS1、CXCL12和GREB1的表达情况。结果 免疫共沉淀联合质谱分析发现,PHB1和PHB2均存在于PGRMC1的免疫共沉淀组分中;GST pull-down鉴定体外条件下PGRMC1与PHB复合体存在直接相互作用。与相应对照组相比,过表达PGRMC1和下调PHB1的乳腺癌细胞增殖速度均明显加快(均P<0.05),S期和G2/M期阳性细胞比例均明显增加(均P<0.05),且能够显著促进ER信号通路下游靶基因THBS1、CXCL12和GREB1的表达(均P<0.01)。PGRMC1过表达后MCF7细胞中PHB1与ER的相互作用减弱。下调PHB1后再过表达PGRMC1的细胞周期中,S期和G2/M期阳性细胞比例与单独下调PHB1相比无明显变化(均P>0.05)。结论 PGRMC1可能通过与PHB复合体结合,并解除后者对ER信号通路的抑制作用,从而促进ER信号通路的活化和下游靶基因的表达,加速激素刺激条件下乳腺癌细胞的恶性增殖。  相似文献   
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Abstract

A retrospective cohort study was performed to examine whether, in artificial endometrial preparation for frozen embryo transfer (FET) cycles, progesterone (P) levels the day prior to embryo transfer of euploid embryos have an impact on pregnancy outcomes. In a private university clinic, 244 FETs between January 2016 and June 2017 were analyzed. Endometrial preparation was achieved with estradiol valerate and vaginal micronized progesterone. Serum P and estradiol levels the day prior to embryo transfer were measured. A multivariable analysis to assess the relationship between serum P level and pregnancy outcomes was performed, adjusted for confounding variables. Mean P value was 11.3?±?5.1?ng/ml. Progesterone levels were split in quartiles: Q1: ≤ 8.06?ng/ml; Q2: 8.07–10.64?ng/ml; Q3: 10.65–13.13?ng/ml; Q4: > 13.13?ng/ml. Patients included in the lower P quartile had a significantly higher miscarriage rate and significantly lower live birth rate (LBR) compared to the higher ones. A low serum P level (≤ 10.64?ng/ml) one day before FET is associated with a lower pregnancy and LBR following FET of euploid embryos.  相似文献   
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