One such chromosome abnormality is known as 13–15 trisomy, which is characterized by the presence of an extra chromosome of the 13–15, or, group. 1,2 It has been d-cribed 3,12 in males and ...

generated by combining data from individual trisomies and assuming a spontaneous abortion rate of ~15%. Not all individual trisomies manifest the same slope as seen here; for example, for trisomy ...