UFO's 'Doctor, Doctor' stands as a defining track from their 1975 debut album, 'Space', though this specific live rendition appears on the 2005 compilation 'Impact Live'. The song encapsulates the band's signature blend of hard rock and progressive elements, featuring a driving rhythm section and John Wetton's distinctive bass lines that became a hallmark of their sound. Originally written by Wetton and co-vocalist Phil Mogg, the track explores themes of medical anxiety and existential dread, delivered with a raw energy that reflected the band's early status as a major force in the UK rock scene. Its inclusion in live sets throughout the 1970s and subsequent reissues highlights its enduring appeal and status as a staple of UFO's catalog.