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Transabdominal ultrasound on seventh postnatal day showing a no lithiasis in twin A’s cholecyst and b hyperechogenic cholecystolithiasis in twin B. Abb. 2 Der transabdominale Neugeborenen-Ultraschall am 7. Lebenstag zeigt (a) keine Lithiasis in der Gallenblase von Zwilling A und (b) eine hyperechogene Chlezystolithiasis bei Zwilling B.
