Invited commentary.
Fenton
Kathleen N
KN
International Children's Heart Foundation, Villa Loreto, En Frente del Asilo de Ancianos, Las Colinas, Managua, Nicaragua. kathleennf@msn.com
D000818:Animals; D001026:Coronary Artery Bypass; D005333:Fetus / Q000601:surgery*; D012756:Sheep