Valenca, M.M., Valenca, L.P., Bordini, C.A., et al. (2004) Cerebral Vasospasm and Headache during Sexual Intercourse and Masturbatory Orgasms. Headache, 44, 244-248.
https://doi.org/10.1111/j.1526-4610.2004.04054.x

has been cited by the following article: