Fig. 1
From: How to enhance the novices’ learning in ultrasound-guided procedures utilizing handmade phantoms?

A The appearance of the thoracocentesis phantom with the silicone Ziploc bag and tongue depressors; B, The sonographic image of the thoracocentesis phantom; C, The appearance of the pericardiocentesis phantom with the outer balloon; D, The sonographic image of the pericardiocentesis phantom