3D and 4D printing in dentistry and maxillofacial surgery: Printing

nih4dPurpose: The authors develop the 4D extended cardiac-torso (XCAT) phantom for multimodality imaging research. Methods: Hhly detailed whole-body anatomies for the adult maleDit ratios, especially 2D:4D ratio, a potential proxy marker for prenatal androgen exposure shows sexual dimorphism. Existing literature and recent research show accumulating