PT  - JOURNAL ARTICLE
AU  - U FREDBERG
AU  - G VAN OVEREEM HANSEN
AU  - L BOLVIG
TI  - Placement of intra-articular injections verified by ultrasonography and injected air as contrast medium
AID  - 10.1136/ard.60.5.542
DP  - 2001 May 01
TA  - Annals of the Rheumatic Diseases
PG  - 542--542
VI  - 60
IP  - 5
4099  - http://ard.bmj.com/content/60/5/542.1.short
4100  - http://ard.bmj.com/content/60/5/542.1.full
SO  - Ann Rheum Dis2001 May 01; 60