<prompt> Which of the following is a minor criteria for diagnosis of Rheumatic Fever RF according to modified Jones criteria?ASO titrePast History of Rheumatic FeverFeverSubcutaneous nodules  <response>: Modified Jones criteria modified in 1992 by AHA for diagnosis of Rheumatic fever includes fever, ahralgia, elevated APR ESR C reactive protein, prolonged PR interval on ECG. Ref: Essential Pediatrics, OP Ghai - 6th Edition, Page 377; Harrison 16th Edition, Page 1978; Moss and Adams Hea Disease in Infants, Children Volume 1, By Ahur J. Moss, Hugh D. Allen - Pg 1260 