Princess Margaret Hospital - ppt video online download
Aplasia Cutis Congenita With the "Hair Collar Sign" | Consultant360
Imaging of Diaphragmatic rupture
Collar sign of diaphragmatic rupture | Radiology Case | Radiopaedia.org
Widening of the femoral proximal diaphysis–metaphysis angle in fetuses with achondroplasia - Khalil - 2014 - Ultrasound in Obstetrics & Gynecology - Wiley Online Library