Mercedes Vergara Gómez

  • Citations Per Year
Learn More
OBJECTIVE To develop and validate a non-invasive index to predict the presence of cirrhosis in patients with chronic hepatitis C on the basis of clinical, laboratory, and ultrasound findings. MATERIALS AND METHODS Data from the complete history and physical examination, serologic studies, liver ultrasound, and liver biopsy of patients with chronic(More)
It is well known that aluminium is potentially neurotoxic. Moreover, there has been concern in recent years that dietary and environmental exposure to aluminium might cause developmental toxicity in mammals. While it is well established that aluminium may be a developmental toxic when administered parenterally, until recently there was little concern about(More)
We present UBVRI photometry of 44 type-Ia supernovae (SN Ia) observed from 1997 to 2001 as part of a continuing monitoring campaign at the Fred Lawrence Whipple Observatory of the Harvard-Smithsonian Center for Astrophysics. The data set comprises 2190 observations and is the largest homogeneously observed and reduced sample of SN Ia to date, nearly(More)
Concordant gallium-67 and thallium-201 uptake has been described in malignant lesions. More recently,201Tl accumulation has been described in some benign conditions. The authors report three HIV-positive patients who underwent67Ga and201Tl scintigraphy. These studies revealed concordant67Ga and201Tl uptake and tumour was erroneously diagnosed. All three(More)
The Expert Patients Program (EPP), an educational intervention for chronic diseases aimed at nonprofessionals, has high nonparticipation and dropout rates. We used quantitative and qualitative methods to identify the prevalence of and reasons for nonparticipation in 100 patients with acute myocardial infarction and 69 with stroke. We confirmed a high(More)
We present optical spectra of eight candidate brown dwarfs and a previously known T Tauri star (Sz 33) of the Chamaeleon I dark cloud. We derived spectral types based on the strength of the TiO or VO absorption bands present in the spectra of these objects as well as on the PC3 index of Mart́ın et al. (1999). Photometric data from the literature are used to(More)
We present 0.95–2.5 μm moderate (R ∼ 500) resolution spectra of 19 ISOCAM detected sources in the Chamaeleon I dark cloud. Thirteen of these stars are candidate very low mass members of the cloud proposed by Persi et al. (2000) on basis of the mid-IR color excess. The sample also includes a bona-fide young brown dwarf (Cha Hα 1), a transition(More)
Alfrey AC (USA) Anghileri LJ (France) Anke M (Germany) Aposhian HV (USA) Badawi AF (Egypt) Barckhaus RM (Germany) Bartrons R (Spain) Belliveau JF (USA) Carreras J (Spain) Crook J (USA) Etienne JC (France) Evans HL (USA) Farre R (Spain) Farzami B (Iran) Gielen M (Belgium) Guinovart JJ (Spain) Grandjean P (Denmark) Ikeda M (Japan) Jones MM (USA) Khassanova L(More)
We describe a near-infrared imaging survey of Globule 2 in the Coalsack. This Bok globule is the highest density region of this southern hemisphere molecular cloud and is the most likely location for young stars in this complex. The survey is complete for K < 14.0, H < 14.5, and J < 15.5, several magnitudes more sensitive than previous observations of this(More)
  • 1