(٢) «الموسوعة الطبية الفقهية» لكنعان (ص ٣٧٤). (٣) Perinatal Care at the Threshold of Viability [Journal] /auth.Hugh MacDonald MD، and the Committee on Fetus and Newborn//PEDIATRICS. - USA: AMERICAN ACADEMY OF PEDIATRICS، Nov. ٢٠٠٢. - ٥: Vol. ١١٠. Trends in neonatal morbidity and mortality for very low birthweight infants [Journal] /auth.Fanaroff AA Stoll BJ، ... //American Journal of Obstetrics and Gynecology. - USA: Mosby، ٢٠٠٧. - ٢: Vol. ١٩٦. - PMID: ١٧٣٠٦٦٥٩. Prenatal Consultation at the Limits of Viability [Journal] /auth.Halamek Louis//NeoReviews. - USA: American Academy of Pediatrics، ٢٠٠٣. - ٦: Vol. ٤.