Separated by 17,500 miles but still podcasting – in this international episode we discuss the timing of TPN, the future of airway research and some stuff about genetics that it turns out no one really understands. In addition to our discoveries and Biology or Bunkum, we introduce our new feature 'Question of the Month', where we challenge you to answer Mark's monthly brainteaser for an as yet undecided and probably valueless prize. Just in case we forgot to mention it, we're now on twitter as @GasCast.
