@article{prasanthi_lakshmi_2013,  title={Synergistic effect of iontophoresis and chemical enhancers on transdermal permeation of tolterodine tartrate for the treatment of overactive bladder},  volume={39},  ISSN={1677-5538},  url={https://doi.org/10.1590/S1677-5538.IBJU.2013.01.09},  DOI={10.1590/S1677-5538.IBJU.2013.01.09},  number={1},  journal={International braz j urol},  publisher={Sociedade Brasileira de Urologia},  author={Prasanthi, D. and Lakshmi, P. K.},  year={2013},  month={Jan},  pages={63–76} }