Bhati, A.S., Tyagi, A. and Tyagi, S.K. 2018. 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. 5, 12 (Nov. 2018), 4075–4077. DOI:https://doi.org/10.18203/2349-2902.isj20185048.