1 in 89 births results in twins; 1 in 7921 in triplets (89 _ 89); 1 in 704,969 in quadruplets (89 _ 89 _ 89); and so on.
InsideSurgery Medical Information Blog
Details of surgical procedures, pathophysiology, signs and symptoms, and treatment of medical diseases,medical and surgical eponyms, and surgeons and surgery in the news