A Split-face Study on Rejuvenation Efficacy According to Monopolar Radiofrequency Tip Size.

Monopolar radiofrequency (RF) non-invasively tightens and rejuvenates the skin by stimulating collagen fiber production. Since the introduction of the monopolar RF device in the early 2000's, RF devices have advanced and they can rejuvenate of periorbital and forehead wrinkles, as well as skin laxity of the lower face and neck. We compared the differences in the treatment effects based on the tip size.

Stress Experience of COVID-19 Patients as Reported by Psychological Supporters in South Korea: A Qualitative Study.

Background: COVID-19 patients experience various stressors during the quarantine period and after release from quarantine. However, stressors experienced during each period remain unclear.

Methods: A total of 15 mental health experts from the integrated psychological support group for COVID-19participated in this study.

The relationship between visceral adiposity and cognitive performance in older adults.

Background: a direct association between visceral adiposity on abdominal computed tomography (CT) and cognitive performance has not been reported.

Objectives: to investigate the associations between total and regional adiposity measured with abdominal CT, and cognitive performance in elderly persons and to explore their modification by age.

Design: cross-sectional study.

The reliability and validity of the junior temperament and character inventory.

The purpose of this study was to evaluate the reliability and validity of the Junior Temperament and Character Inventory (Junior TCI), a child and adolescent version of the Adult Temperament and Character Inventory (TCI), which is based on Cloninger's biosocial model of personality. The Junior TCI was translated into Korean and administered to 663 Korean middle school students (male/female, 360/303; age, 13.3 +/- 1.