Coleman, D. Jackson, Winston Lee, MS, Vivienne C. Greenstein, PhD, Suzanne Daly, BSN, & Stephen H. Tsang, MD, PhD. " Long-Term Maintenance of Vision and Resolution of Vitelliform Lesions with Systemic Phosphodiesterase 5/6 Treatment (Sildenafil)." Medical Research Archives [Online], 9.11 (2021): n. pag. Web. 4 May. 2024