Risk of nonarteritic ischaemic opticneuropathy with phosphodiesterase type 5 inhibitors: a systematic review andmeta-analysis.
Penedones A, Alves C, Batel Marques F.
Acta Ophthalmol. 2019 Sep 27. doi: 10.1111/aos.14253. [Epub ahead of print] Review. PubMed PMID: 31559705.
2019