About feasibility of SpaceX's human exploration Mars mission scenario with Starship.

After decades where human spaceflight missions have been reserved to low Earth orbit, recent years have seen mission proposals and even implemented plans, e.g. with the mission Artemis I, for returning to the lunar surface.

Evaluating the provision of paediatric liaison psychiatry services in England.

Background: Liaison psychiatry provision for children and young people in England is poorly evaluated.

Aims: We sought to evaluate paediatric liaison psychiatry provision and develop recommendations to improve practice.

Method: The liaison psychiatry surveys of England (LPSE) cross-sectional surveys engage all liaison psychiatry services in England.

Surgical revision after percutaneous mitral valve repair by edge-to-edge device in high-risk patients.

Background: Patients scheduled for surgery after unsuccessful MitraClip® intervention present increasingly with multiple comorbidities, and they are often referred to the heart team to suggest the most appropriate intervention. The publication of successful results of initial patient cohorts treated with the MitraClip device has resulted in recruitment of more seriously ill patients, who otherwise would have been denied catheter-based/surgical treatment. There has been increasingly reports on conventional surgery after failed mitral valve repair with the MitraClip device.