Urologic surgery, symptomatology of urological diseases, examinations in urology, urinary tract infections, urolithiasis, genitourinary injuries, carcinoma of the bladder, testicular and prostatic tumors, benign prostatic hypertrophy, orthopedic examination, vertebral column diseases, arthrosis, aseptic bone necrosis, orthopedic infections, septic arthritis, acute and chronic osteomyelitis, bone tumors.