97,468 papers found

BACKGROUND: Gastrointestinal stromal tumors (GIST) represent the most common mesenchymal tumors of the digestive tract. Over the last ten years the management of GISTs has dramatically altered but their coexistence with other gasrointesinal tumors of different histogenesis presents a special interest. The coexistence o…

Southern-sourced Antarctic Intermediate Water (AAIW) and Subantarctic Mode Water (SAMW) are currently major sinks of atmospheric CO. During the last deglaciation, atmospheric COlevels increased significantly during two specific time periods, Heinrich Stadial 1 (H1) ~18-14.6 ka BP (thousand years ago befor…

Climate change affects physical and biogeochemical processes in lakes. We show significant increases in surface-water temperature (~ 0.5 °C decade; > 0.2% year) and wave power (> 1% year; the transport of energy by waves) associated with atmospheric phenomena (Atlantic Multidecadal…

Objectives. To evaluate if cumulative weight exposure is associated with weight loss strategy choices and weight loss success. Methods. Data from the National Health and Nutrition Examination Survey were used; a total of 4,562 people age 50 years or older who reported trying to lose weight in the last year were studied…

OBJECTIVE: To examine the effects of socioeconomic status and biocultural variables (planned pregnancy, prenatal care, timing of initiation of breast-feeding and caesarean section delivery) on breast-feeding duration in Peru using structural equation models. DESIGN AND SETTING: Structural equation models were analysed…

Musculoskeletal disorders (MSDs) can be characterized from their occupational etiology and their occurrence; their chronicity generates negative repercussions for the health of workers, especially of artisanal fishing. To investigate the prevalence of generalized musculoskeletal disorders by body region and self-report…

BACKGROUND: With increasing use of atypical antipsychotics among pediatric patients, detailed information about safety and tolerability is crucial. METHOD: Data were pooled from two 8-week, randomized, double-blind, multicenter, parallel-group trials comparing aripiprazole versus placebo in subjects aged 6 to 17 years…

BACKGROUND: A third dose of measles-mumps-rubella vaccine (MMR) may be administered for various reasons, but data on long-term immunity are limited. We assessed neutralizing antibody levels against measles and rubella among adults up to 11 years after receipt of a third MMR dose. METHODS: In this longitudinal study, h…

Introduction: In recent years there has been an increase in imported malaria among children in whom it is a potentially serious and fatal disease. Objective: To describe the incidence and the clinical and epidemiological characteristics of malaria in children diagnosed in Alicante, Spain, over a 26-year period. Materia…

PURPOSE: To evaluate neuropsychological functioning over time in children treated for acute lymphoblastic leukemia (ALL) with chemotherapy only. PATIENTS AND METHODS: Forty-nine consecutive patients (median age at first assessment, 6.8 years; range, 4.0 to 11.8 years) treated with intrathecal and systemic chemotherapy…

BACKGROUND: The precision of adult height prediction by bone age determination in children with idiopathic growth hormone deficiency (IGHD) is unknown. METHODS: The near adult height (NAH) of patients with IGHD in the KIGS database was compared retrospectively to adult height prediction calculated by the Bayley-Pinnea…

The authors examined 984 human sera for leptospirosis with the serovars from 15 serogroups serologically in 15 localities of El Salvador. In 17.5% of the sera the following reactions were found with serovars of 13 serogroups: Australis 6.8%, Pomona 5.5%, Grippotyphosa 3.2%, Icterohaemorrhagiae and Tarassovi each 2.1%,…

PURPOSE: This retrospective study was performed to evaluate the clinical results and measure polyethylene liner wear in total hip arthroplasty (THA) with highly cross-linked polyethylene. MATERIALS AND METHODS: Except for patients who had died or were unable to have follow-up at least 2 years, 60 of 78 hips that under…

Graf ligamentoplasty is seen as a means of stabilising and reducing the mobility of one or more severely symptomatic motion segments associated with degenerative disc disease. It is a less invasive procedure than fusion and appears to have a similar or slightly better success rate. Some studies have reported mixed resu…

Predicting how marine mammal populations respond to habitat changes will be essential for developing conservation management strategies in the 21st century. Responses to previous environmental change may be informative in the development of predictive models. Here we describe the likely effects of the last ice age on g…

In a retrospective study, a computer-based stepwise discriminant analysis was used to create a biostatistical model of the results of surgery in acquired esotropia. One hundred seventy-two patients who had bilateral medial rectus muscle recession as an initial operative procedure with at least 6 months postoperative fo…

48 patients with ALL (3%) treated according to two different protocols survived 5 years or longer. The mean survival time was 13.0 +/- 5.0 years, but 29 patients lived 16.5 +/- 3.0 years. Only 18 patients (38%) were 16.9 +/- 3.0 years in them 1. CCR, the longest remission time amounted to more than 25 years. Of the pat…

BACKGROUND: There is evidence that the financial crisis has deleteriously affected scientific output. We aimed to assess the dynamics of Greek publications in gastroenterology and hepatology over the last ten years. METHODS: Data were collected from SCImago. The average annual growth rate (AAGR) of total and citable d…

The relationship between the development of microangiopathy and the degree of diabetic control was investigated in 61 noninsulin-dependent diabetics after 5-10 years of known duration of diabetes. The degree of diabetic control was assessed by fasting blood glucose (FBG) at the last assessment, haemoglobin A1 (HbA1) an…

The relative frequency of cancer cases (percentage of total malignancies) admitted to Los Angeles County-University of Southern California (LAC-USC) Medical Center from 1942 to 1974 was studied (basal cell and epidermoid carcinoma of the skin were excluded). Among cancers of the digestive system, the relative frequency…