22q11.2 deletion syndrome: Ultrasound features and opportunities for screening using cell-free DNA 

In a presentation sponsored by Roche and GE Healthcare at the 29th World Congress on Ultrasound in Obstetrics and Gynecology, Dr. Rabih Chaoui (Center for Prenatal Diagnosis and Human Genetics, Germany) discusses prenatal screening strategies for 22q11.2 deletion using ultrasound combined with cell-free DNA testing.

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