BibTex format
@article{Marcus:2014:10.3109/02688697.2014.887654,
author = {Marcus, HJ and Cundy, TP and Hughes-Hallett, A and Yang, G-Z and Darzi, A and Nandi, D},
doi = {10.3109/02688697.2014.887654},
journal = {Br J Neurosurg},
pages = {606--610},
title = {Endoscopic and keyhole endoscope-assisted neurosurgical approaches: a qualitative survey on technical challenges and technological solutions.},
url = {http://dx.doi.org/10.3109/02688697.2014.887654},
volume = {28},
year = {2014}
}