Immunoglobulin E (IgE) and ischemic heart disease. Which came first, the chicken or the egg?

Lippi G, Cervellin G, Sanchis-Gomar F.

Immunoglobulin E (IgE) and ischemic heart disease. Which came first, the chicken or the egg?
Ann Med. 2014 Jul 1:1-8.
10.3109/07853890.2014.927714