Alternative processing of the U2 small nuclear RNA produces a 19-22nt fragment with relevance for the detection of non-small cell lung cancer in human serum. oleh Julien Mazières, Caroline Catherinne, Olivier Delfour, Sandrine Gouin, Isabelle Rouquette, Marie-Bernadette Delisle, Grégoire Prévot, Roger Escamilla, Alain Didier, David H Persing, Mike Bates, Bernard Michot