Useful references:

Korpelainen JT, Nieminen P, Myllylä VV. Sexual Functioning Among Stroke Patients and Their Spouses Stroke 1999;30:715-719.

Melnik, T., Soares, B., & Nasselo, A. Psychosocial interventions for erectile dysfunction, Cochrane Database of Systematic Reviews, 2007 vol. 3, p. CD004825.

Thompson S B, Walker L . Sexual Dysfunction after Stroke: Underestimating the Importance of Psychological and Physical Issues . WebmedCentral PHYSICAL MEDICINE 2011;2(12):WMC002760.