Relationship of vitamin D deficiency with mammographic breast density and triple-negative breast cancer: A cross-sectional study.

Background As breast epithelium is affected by vitamin D, it may have a direct effect on breast density and the risk of breast cancer. Our aim was to study the serum levels of vitamin D in patients with malignant and benign breast disease, and to study the association, if any, between vitamin D levels, mammographic breast density (MD) and molecular subtypes of breast cancer. Methods In this cross-sectional, observational study, we enrolled 162 consecutive adult women with benign and malignant breast masses subjected to mammography and core-needle biopsy.

The Impact of "COVID-19" and "Webinar Pandemic" on Plastic Surgery Practice in Teaching Institutes and Resident Training-A Multicentric Perspective.

 The study was carried out to quantify the changes induced by the pandemic in plastic surgery practice and training and to study the impact of the webinars on plastic surgery education from a residents' perspective.  In this multicentric study, the number and type of surgeries, cause of injuries, and their regional variation during the coronavirus disease 2019 (COVID-19) period (February-September 2020) were compared with pre-COVID-19 time. An online survey on the impact of webinars was conducted for plastic surgery trainees across the country.