• A holoacardius amorphus
• Acardiac twins--an analysis of 10 cases
• Acardius or "twin-reversed arterial prefusion" sequence. Report of four cases and review of current therapeutic possibilities
• An unusual fetal monster: holocardius amorphus. Considerations on a clinical case
• Anatomic study of a omphalosite monster
• Bovine holoacardius amorphus monster
• Foetus holo-acardius amorphus
• HOLOACARDIS AMORPHUS. DEFINITION. CLASSIFICATION. ETIOLOGY (VARIOUS THEORIES). PRESENTATION OF A CASE. BIBLIOGRAPHY
• Holoacardius amorphus totalis in two Friesian cows carrying natural and induced twins
• Holoacardius amorphus. Report of a case with chromosome analysis
• Holocardius amorphus
• Holocardus parasiticus amorphus
• Teratoma of the umbilical cord. Case report with review of the literature