Schmidt, Markus H; Schmidt, Helmut S (March 2004). "Sleep-related erections: Neural mechanisms and clinical significance". Current Neurology and Neuroscience Reports. 4 (2): 170–178. doi:10.1007/s11910-004-0033-5. PMID14984691. S2CID26939007.
Schmidt, Markus H; Schmidt, Helmut S (March 2004). "Sleep-related erections: Neural mechanisms and clinical significance". Current Neurology and Neuroscience Reports. 4 (2): 170–178. doi:10.1007/s11910-004-0033-5. PMID14984691. S2CID26939007.
Schmidt, Markus H; Schmidt, Helmut S (March 2004). "Sleep-related erections: Neural mechanisms and clinical significance". Current Neurology and Neuroscience Reports. 4 (2): 170–178. doi:10.1007/s11910-004-0033-5. PMID14984691. S2CID26939007.