Acardia (Twin Reversed Arterial Perfusion Sequence) is a rare and one of the most bizarre congenital malformations occurring in multiple pregnancies. It affects 1 in 35. 000 pregnancies. Usually one twin shows absence of heart and other is structurally normal. https://www.roneverhart.com/HP-Pavilion-15-eg1053cl-15-6-FHD-Touch-Intel-Core-i5-1235U-3-30-GHz-Intel-Iris-Xe-Graphics-12-GB-DDR4-RAM-512-GB-SSD-/