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2. Sultan. Abdominal Hernia.
3. International Text Book of Surgery. Vol. II. 1900. P. 487.
4. Jonathan F. C. H. Macready. A Treatise on Ruptures. London. 1893. P. 108.
5. Lassus. Méd. Opérat. Vol. I. 1796. Pp. 173–175.