Cre/lox-assisted non-invasive in vivo tracking of specific cell populations by positron emission tomography oleh Martin Thunemann, Barbara F. Schörg, Susanne Feil, Yun Lin, Jakob Voelkl, Matthias Golla, Angelos Vachaviolos, Ursula Kohlhofer, Leticia Quintanilla-Martinez, Marcus Olbrich, Walter Ehrlichmann, Gerald Reischl, Christoph M. Griessinger, Harald F. Langer, Meinrad Gawaz, Florian Lang, Michael Schäfers, Manfred Kneilling, Bernd J. Pichler, Robert Feil