Study protocol for a randomised placebo-controlled trial of pramipexole in addition to mood stabilisers for patients with treatment resistant bipolar depression (the PAX-BD study) oleh Lumbini Azim, Paul Hindmarch, Georgiana Browne, Thomas Chadwick, Emily Clare, Paul Courtney, Lyndsey Dixon, Nichola Duffelen, Tony Fouweather, John R. Geddes, Nicola Goudie, Sandy Harvey, Timea Helter, Eva-Maria Holstein, Garry Martin, Phil Mawson, Jenny McCaffery, Richard Morriss, Judit Simon, Daniel Smith, Paul R. A. Stokes, Jenn Walker, Chris Weetman, Faye Wolstenhulme, Allan H. Young, Stuart Watson, R. Hamish McAllister-Williams