RT Journal Article SR Electronic T1 In-vivo skin test. JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 105 DO 10.1136/ard.41.1.105-b VO 41 IS 1 A1 U Ambanelli A1 G F Ferraccioli YR 1982 UL http://ard.bmj.com/content/41/1/105.2.abstract AB