Doppler Ultrasound Monitoring of Echogenicity in Asymptomatic Subcritical Carotid Stenosis and Assessment of Response to Oral Supplementation of Vitamin K2 (PLAK2 Randomized Contro... oleh Yamume Tshomba, Domenico Baccellieri, Niccolò Carta, Giuseppe Cilli, Vincenzo Ardita, Luca Apruzzi, Diletta Loschi, Andrea Kahlberg, Luca Bertoglio, Renata Castellano, Elisa Simonini, Felicita Andreotti, Roberto Chiesa