@article{201806.0248, doi = {10.20944/preprints201806.0248.v1}, url = {https://doi.org/10.20944/preprints201806.0248.v1}, year = 2018, month = {June}, publisher = {Preprints}, author = {Mohammad Pakravan and Mohammadmehdi Hatami and Hamed Esfandiari and Shahin Yazdani and Azadeh Doozandeh and Bahareh Kheiri and Ian Conner}, title = {Ahmed Glaucoma Valve Implantation: Graft-Free Short Tunnel Small Flap versus Scleral Patch Graft After 1 Year Follow-Up: A Randomised Clinical Trial}, journal = {Preprints} }