title: Invited commentary.
authors.affiliation: Department of Surgery, Cardiovascular Research Center, Rhode Island Hospital, Alpert Medical School of Brown University, 1 Hoppin St, Coro West, Rm 5.235, Providence, RI02903. Electronic address: jfeng@lifespan.org.
authors.forename: Jun
authors.initials: J
authors.lastname: Feng
mesh_terms: D000818:Animals; D005260:Female; D005318:Fetal Heart / Q000502:physiology*; D006801:Humans; D009203:Myocardial Infarction / Q000196:embryology* / Q000235:genetics*; D011247:Pregnancy; D011270:Pregnancy, Animal; D012038:Regeneration / Q000502:physiology*; D020257:Ventricular Remodeling / Q000502:physiology*