PT - JOURNAL ARTICLE AU - MARWIN GUTIERREZ AU - LUCA DI GESO AU - EMILIO FILIPPUCCI AU - WALTER GRASSI TI - Calcium Pyrophosphate Crystals Detected by Ultrasound in Patients without Radiographic Evidence of Cartilage Calcifications AID - 10.3899/jrheum.100653 DP - 2010 Dec 01 TA - The Journal of Rheumatology PG - 2602--2603 VI - 37 IP - 12 4099 - http://www.jrheum.org/content/37/12/2602.short 4100 - http://www.jrheum.org/content/37/12/2602.full SO - J Rheumatol2010 Dec 01; 37