Visualization 1: Imaging behind opaque obstacle: a potential method for guided in vitro needle placement PerincherySandeep Menon ShindeAnant MathamMurukeshan Vadakke 2016 Visualization 1 (Comparison of a conventional long DOF lens with an axicon lens using USAF chart as the object) Originally published in Biomedical Optics Express on 01 December 2016 (boe-7-12-5308)