@article{hui jiang2023erectile,
  title={Treating erectile dysfunction with sildenafil alone versus combined with vitamin D3 in patients with low serum 25-hydroxy vitamin D3: a prospective randomized controlled open trial},
  author={kang yang,hui jiang,xiansheng zhang},
  journal={Journal of Men's Health},
  volume={19},
  number={5},
  pages={7--13},
  doi = {10.22514/jomh.2023.036},
  year={2023}
}