Impact of Severe Winter Weather on Operations of a Radiation Oncology Department.

Purpose: During winter 2022, western New York faced 2 major storms with blizzard conditions and record-breaking snowfall. The severe weather resulted in power outages and travel bans. This study investigates the impact of these conditions on patient adherence to radiation therapy.

Erratum: Author Correction: Clinical validation of smartphone-based activity tracking in peripheral artery disease patients.

[This corrects the article DOI: 10.1038/s41746-018-0073-x.].

Clinical validation of smartphone-based activity tracking in peripheral artery disease patients.

Peripheral artery disease (PAD) is a vascular disease that leads to reduced blood flow to the limbs, often causing claudication symptoms that impair patients' ability to walk. The distance walked during a 6-min walk test (6MWT) correlates well with patient claudication symptoms, so we developed the VascTrac iPhone app as a platform for monitoring PAD using a digital 6MWT. In this study, we evaluate the accuracy of the built-in iPhone distance and step-counting algorithms during 6MWTs.