Correction to: Impact of air pollution on hospital admissions with a focus on respiratory diseases: a time-series multi-city analysis.

All measurements in the paper are to be understood as expressed in mg/m3.

Impact of air pollution on hospital admissions with a focus on respiratory diseases: a time-series multi-city analysis.

Together with the growing availability of data from electronic records from healthcare providers and healthcare systems, an assessment of associations between different environmental parameters (e.g., pollution levels and meteorological data) and hospitalizations, morbidity, and mortality has become possible.

A case of a large endometrial cyst imitating an ovarian neoplasm.

A case of giant endometrioma imitating an ovarian neoplasm is reported and difficulties in radiological differential diagnosis of such lesions are discussed.

Primary adenocarcinoma of the jejunum--a case report.

A case of adenocarcinoma of jejunum is reported. Although survival figures in adenocarcinoma of the small bowel appear to correlate with early presentation, due to poor specificity of the symptoms a preoperative diagnosis is very seldom. Therefore, in order to improve the treatment outcome, the diagnosis must be done at an early stage.