Bhati, A. S., A. Tyagi, and S. K. Tyagi. “Attachment of a Pressure Gradient Chamber to Existing Lumbar Theco-Peritoneal Shunt in a Patient With Pseudotumor Cerebri With Low Pressure Headaches, a Novel Procedure: A Case Report”. International Surgery Journal, vol. 5, no. 12, Nov. 2018, pp. 4075-7, doi:10.18203/2349-2902.isj20185048.