全文获取类型
收费全文 | 4023篇 |
免费 | 265篇 |
国内免费 | 62篇 |
专业分类
耳鼻咽喉 | 13篇 |
儿科学 | 157篇 |
妇产科学 | 57篇 |
基础医学 | 479篇 |
口腔科学 | 98篇 |
临床医学 | 487篇 |
内科学 | 981篇 |
皮肤病学 | 69篇 |
神经病学 | 324篇 |
特种医学 | 463篇 |
外国民族医学 | 2篇 |
外科学 | 368篇 |
综合类 | 53篇 |
预防医学 | 211篇 |
眼科学 | 58篇 |
药学 | 290篇 |
中国医学 | 2篇 |
肿瘤学 | 238篇 |
出版年
2022年 | 30篇 |
2021年 | 62篇 |
2020年 | 32篇 |
2019年 | 44篇 |
2018年 | 74篇 |
2017年 | 46篇 |
2016年 | 56篇 |
2015年 | 75篇 |
2014年 | 102篇 |
2013年 | 163篇 |
2012年 | 161篇 |
2011年 | 161篇 |
2010年 | 102篇 |
2009年 | 137篇 |
2008年 | 132篇 |
2007年 | 166篇 |
2006年 | 153篇 |
2005年 | 149篇 |
2004年 | 140篇 |
2003年 | 121篇 |
2002年 | 116篇 |
2001年 | 129篇 |
2000年 | 134篇 |
1999年 | 133篇 |
1998年 | 101篇 |
1997年 | 104篇 |
1996年 | 119篇 |
1995年 | 83篇 |
1994年 | 88篇 |
1993年 | 73篇 |
1992年 | 84篇 |
1991年 | 72篇 |
1990年 | 85篇 |
1989年 | 100篇 |
1988年 | 79篇 |
1987年 | 80篇 |
1986年 | 97篇 |
1985年 | 77篇 |
1984年 | 48篇 |
1983年 | 43篇 |
1982年 | 25篇 |
1981年 | 24篇 |
1980年 | 35篇 |
1979年 | 48篇 |
1978年 | 38篇 |
1977年 | 29篇 |
1976年 | 37篇 |
1975年 | 20篇 |
1974年 | 19篇 |
1973年 | 21篇 |
排序方式: 共有4350条查询结果,搜索用时 31 毫秒
1.
Laurent Boyer Patrice Francois Elisabeth Doutre Georges Weil Jose Labarere 《International journal for quality in health care》2006,18(5):359-364
OBJECTIVE: . The aim of this study was to assess clinical staff's opinions on the results of in-patient satisfaction surveys and their use within the quality improvement process. SETTING: The institution is a 2200-bed teaching hospital of tertiary health care employing 8000 professionals. Patient satisfaction surveys are carried out each year using a validated questionnaire mailed to a random sample of patients. The specific results of each department are sent to the medical and paramedical managers. METHODS: We conducted a questionnaire survey on 500 care providers randomly selected in every medical and surgical department. RESULTS: A total of 261 questionnaires were returned and analysed. Overall, 94% of responders had a favourable opinion of the patient satisfaction surveys. They considered that the patient was able to judge hospital service quality, especially in its relational, organizational, and environmental dimensions. The specific results for the department were less well known than the overall hospital results (60 versus 76%). These results were formally discussed in the department according to 40% of responders; 40% declared that these data resulted in improvement actions and considered that they led to modifications in their behaviour with patients. CONCLUSIONS: Despite a declared interest in satisfaction surveys, the results remain underused by hospital staff and insufficiently discussed within teams. 相似文献
2.
3.
4.
The consequences of alcoholism on the mental health of spouses of lifetime at-risk drinkers are only known from studies on alcoholics already in treatment. A retrospective analysis was conducted using data from a Quebec community health survey. The purpose of this study was twofold. First, our goal was to ascertain the mental health of female spouses living with a male lifetime at-risk drinker. Secondly, we wanted to examine the relationship between male lifetime at-risk drinkers (aged 30-54 years) and the psychological distress of their nondrinking female spouses. Lifetime at-risk drinking, for the purposes of this study, was defined as having at least two positive answers to the CAGE questionnaire. Couples wherein both spouses were deemed not at-risk for problem drinking by the CAGE instrument (0 or 1 positive answer) formed the control group. Psychological distress was measured using the Indice de Détresse Psychologique de l'Enquête Santé Québec (Préville, M., Boyer, R., Potvin, L., Perreault, C., & Légaré, G. (1992). La détresse psychologique: détermination de la fiabilité et de la validité de la mesure utilisée dans l'enquête Santé Québec. Cahier de recherches #7, Montréal, Santé Québec.). It measures symptoms of anxiety, depression, aggressivity, and cognitive impairments. Scores of >or=22 (out of 100) were indicative of a high level of psychological distress. This study confirmed higher levels of psychological distress in female spouses of male lifetime at-risk drinkers in the general population. An exploratory study examined the association between the psychological distress of female spouses and each of the following nine independent variables: male partner lifetime at-risk drinker, stressful life events, job situation, socioeconomic status, perceived health status, presence of children less than 15 years, length of the marital relationship, presence of a confidant, and availability of social support. Lifetime at-risk drinking is a risk factor for the spouse's psychological distress. An examination of the demographic characteristics related to alcohol intake in male lifetime at-risk drinkers is also described in this study. 相似文献
5.
Minorities and AIDS: knowledge, attitudes, and misconceptions among black and Latino adolescents. 总被引:4,自引:2,他引:2 下载免费PDF全文
White adolescents in San Francisco high schools were more knowledgeable than Black adolescents about the cause, transmission, and prevention of AIDS (acquired immunodeficiency syndrome), and Black adolescents were more knowledgeable than their Latino peers. Black and Latino adolescents were approximately twice as likely as White adolescents to have misconceptions about the casual transmission of AIDS. Less knowledge about AIDS and prevalent misconceptions were associated with greater levels of perceived risk of contracting AIDS. 相似文献
6.
7.
8.
Human lymphocytes that have been heat-inactivated (1 hr, 45 degrees C) were used as stimulator cells in a model system to study the requirements of allogeneic T cell activation in vitro. Cytotoxic T lymphocytes were not generated in either primary or secondary mixed lymphocyte cultures after exposure to heated stimulator cells. Successful reconstitution of cytolytic activity in primary cultures was achieved by the addition of rIL-2. Further, cytotoxic T cell lines could be maintained in culture for several weeks by stimulation with heated allogeneic cells and periodic addition of exogenous IL-2. The cytotoxic T cells generated in primary cultures or in the T cell lines were specific for the HLA class I antigens of the stimulating cells. Thus, the combination of heated cells and IL-2 stimulated antigen-specific cytotoxic cells, and not merely lymphokine-activated killers. Although IL-2 production appeared to be a crucial missing component of MLCs with heated lymphocytes, the addition of IL-1, a factor known to act as a second signal for stimulating IL-2 production, did not reconstitute cytolytic activity. These results indicate that (1) heat treatment does not appreciably affect class I structure; (2) HLA class I/T cell receptor interactions are intact, resulting in responsiveness to IL-2 but not IL-1; and (3) heating creates a defect that has a minimal effect on CTL precursor activation but does disrupt a T helper cell/stimulator cell interaction critical for IL-2 production. 相似文献
9.
Leonidas JC; Berdon WE; Valderrama E; Neveling U; Schuval S; Weiss SJ; Hilfer C; Godine L 《Radiology》1996,198(2):377