1. I. Aird(1949 ), "A Companion in Surgical Studies ." EdinburghE. & S. Livingstone, page682 .
2. F. Avery-Jones(1952 ), "Modern Trends in Gastro-Enterology ." London, Butterworth & Co., page498 .
3. H. Bailey(1953 ), "Emergency Surgery ." Sixth Edition. Bristol, John Wright & Sons, page329 .
4. PREGNANCY AND INTESTINAL OBSTRUCTION: A DANGEROUS COMBINATION