What Should We Consider Carefully When Performing Survival Analysis?

Erythema nodosum :what should we consider about it?

Should We Consider another Booster Dose of Measles Vaccine?

Background: To date, 36 years has passed since the beginning of measles vaccination; the disease is still circulating around the world, threatening lives of human beings especially in developing countries.  In recent years, we have confronted measles in previously vaccinated adults from all over the country. Objective: To find out if there is a need for changing our routine measles vaccination ...

When Should We Consider Lens Distortion in Camera Calibration

In this paper, calibrating a camera refers to the process of determining the transformation between a 3D object coordinate system and the 2D image coordinate system of the camera. Knowing this transformation, 3D position of a feature point seen in two cameras can be determined by using triangulation. Suppose a distortion-free lens is had, this 3D-2D transformation can be well approximated by a ...

Erythema nodosum: what should we consider about it?

Dear Editor, Erythema nodosum (EN) or panniculitis is a cutaneous reaction consisting of inflammatory tender erythematous nodular lesions, spontaneously regressing located primarily over the extensor surface of lower extremities (1). EN can occur at any age but its peak incidence is between the third and fourth decades (2). Prevalence of EN is 3-5 times higher in women than men (3). Erythema no...

Should we search Chinese biomedical databases when performing systematic reviews?

BACKGROUND Chinese biomedical databases contain a large number of publications available to systematic reviewers, but it is unclear whether they are used for synthesizing the available evidence. METHODS We report a case of two systematic reviews on the accuracy of anti-cyclic citrullinated peptide for diagnosing rheumatoid arthritis. In one of these, the authors did not search Chinese databas...