Aasvang EK, Mohl B, Kehlet H (2007) Ejaculatory pain: a specific postherniotomy pain syndrome? Anesthesiology 107(2):298–304PubMedCrossRef

Fletcher D, Fermanian C, Mardaye A, Aegerter P (2008) A patient-based national survey on postoperative pain management in France reveals significant achievements and persistent challenges. Pain 137(2):441–451PubMedCrossRef

Slappendel R, Weber EW, Bugter ML, Dirksen R (1999) The intensity of preoperative pain is directly correlated with the amount of morphine needed for postoperative analgesia. Anesth Analg 88(1):146–148PubMed

Wilder-Smith OH, Tassonyi E, Arendt-Nielsen L (2002) Preoperative back pain is associated with diverse manifestations of central neuroplasticity. Pain 97(3):189–194PubMedCrossRef

Krane EJ, Heller LB (1995) The prevalence of phantom sensation and pain in pediatric amputees. J Pain Symptom Manage 10(1):21–29PubMedCrossRef

Kroner K, Krebs B, Skov J, Jorgensen HS (1989) Immediate and long-term phantom breast syndrome after mastectomy: incidence, clinical characteristics and relationship to pre-mastectomy breast pain. Pain 36(3):327–334PubMedCrossRef

Taddio A, Goldbach M, Ipp M et al (1995) Effect of neonatal circumcision on pain responses during vaccination in boys. Lancet 345(8945):291–292PubMedCrossRef

Taddio A, Katz J, Ilersich AL, Koren G (1997) Effect of neonatal circumcision on pain response during subsequent routine vaccination. Lancet 349(9052):599–603PubMedCrossRef