tips MRI assessment of the effects of acetazolamide and external lumbar drainage in idiopathic Normal Pressure Hydrocephalus April 2, 2015 Fluids and Barriers of the CNS 2015, 12:9Â doi:10.1186/s12987-015-0004-z Milos Ivkovic and Martin Reiss-Zimmermann contributed equally to this work. Published: 2 April 2015