Rising to the challenge: medical students as Doctors' Assistants; an evaluation of a new clinical role.

Introduction: The COVID-19 Pandemic brought clinical placements to a halt for many UK medical students. A University Hospitals Trust offered clinical phase students the opportunity to support the National Health Service (NHS) in newly defined roles as Doctors' Assistants (DAs). This study evaluates the experience of students working in a single NHS Trust.

Mass distribution and rotational inertia of "microtype" and "freely mobile" middle ear ossicles in rodents.

The middle ears of seven species of rodents, including four hamster species, were examined under light microscopy and through micro-CT imaging. Hamsters were found to possess a spectrum of ossicular morphologies ranging from something approaching "freely mobile" (Mesocricetus) to something nearer the "microtype" (Cricetulus), although no hamster has an orbicular apophysis of the malleus. Rats, mice and Calomyscus were found to have typically microtype ossicles.