Deletion of the progranulin gene in patients with frontotemporal lobar degeneration or Parkinson disease oleh Anne Rovelet-Lecrux, Vincent Deramecourt, Solenn Legallic, Claude-Alain Maurage, Isabelle Le Ber, Alexis Brice, Jean-Charles Lambert, Thierry Frébourg, Didier Hannequin, Florence Pasquier, Dominique Campion