Correction to: Development and Multi-Scale Validation of a Finite Element Football Helmet Model.

This correction is to add the middle initials of all authors, which were inadvertently omitted from the original article.

Development and Multi-Scale Validation of a Finite Element Football Helmet Model.

Head injury is a growing concern within contact sports, including American football. Computational tools such as finite element (FE) models provide an avenue for researchers to study, and potentially optimize safety tools, such as helmets. The goal of this study was to develop an accurate representative helmet model that could be used in further study of head injury to mitigate the toll of concussions in contact sports.

Relationship between loneliness and proangiogenic cytokines in newly diagnosed tumors of colon and rectum.

Objective: To investigate the association of serum levels of proangiogenic cytokines with different indices of social support and loneliness by measuring the levels of expression of two important proangiogenic cytokines, vascular endothelial growth factor (VEGF), and interleukin-6 in tumors of colon and rectum. Lack of social support has been prospectively associated with cancer progression.

Methods: Fifty-one newly diagnosed patients with colorectal tumors (mean age, 68.