Ultrasound-guided removal of impalpable, radiolucent vegetative foreign bodies embedded into facial soft tissues of a toddler. - Kourelis, Konstantinos; Mourtzouchos, Konstantinos; Haronis, Vasileios; Goulioumis, Anastasios; Asimakopoulos, Athanasios (International Journal of Pediatric Otorhinolaryngology, 2016)