IMPORTANCE To our knowledge, the rate of change in the size of pediatric vocal fold nodules (VFNs) has not been investigated. Improved understanding of the factors that affect change in VFN size may help to better guide treatment decisions and counselling of families. OBJECTIVE To characterize the rate of change in the size of pediatric VFNs over time and to identify which factors affect incr...

The purpose of this study was to determine the average age of individuals diagnosed with cervical spinal myelopathy who are known cocaine users vs nonusers, as well as the postoperative change in neurological condition between cocaine users and nonusers. Medical records of patients diagnosed with cervical spinal myelopathy between January 1990 and May 2006 were reviewed. Ninety-four patients we...

Tumor hemodynamics of carcinogenic hepatocytes nodules, that is, low grade dysplastic nodules, high grade dysplastic nodules, early hepatocellular carcinomas (HCCs), and progressed HCCs, change during multistep dedifferentiation of the nodules. Morphometric analyses of inflow vessels of these nodules indicate that the portal veins of carcinogenic hepatocyte nodules monotonically decrease wherea...

In recent years, two concepts similar to /?-sequences have appeared, essential sequences and asymptotic sequences. This work explores the general nature of such sequences. Introduction. In the last three years, two concepts similar to that of Ä-sequences have appeared, asymptotic sequences and essential sequences. Motivated by these examples, this paper will study the general nature of such seq...