Post-concussion Return to Shooting Progression for Military Service Members: A Scoping Review and Conceptual Framework.

Introduction: There are established protocols for staged return to physical activity in sport and military settings following concussion. Currently, there is no evidence-based staged return to shooting protocol in use by the U.S.

Epithelial to Stromal Re-Distribution of Primary Cilia during Pancreatic Carcinogenesis.

Background: The Hedgehog (HH) pathway is a mediator in pancreatic ductal adenocarcinoma (PDAC). Surprisingly, previous studies suggested that primary cilia (PC), the essential organelles for HH signal transduction, were lost in PDAC. The aim of this study was to determine the presence of PC in human normal pancreas, chronic pancreatitis, and during carcinogenesis to PDAC with focus on both epithelia and stroma.

Radiographic distortion artifact of circular external fixators.

Circular external fixators are commonly used to surgically treat a variety of orthopedic conditions. However, distortion artifact may mislead the radiographic interpreter as to the true anatomic location of the transfixing wires and either negatively impact patient healing or lead to unnecessary procedures. Distortion is due to unequal magnification of different parts of an object.