Response to Letter-to-Editor by M. Tenhunen and S. Himanen: "Assessment of respiratory effort during sleep: Esophageal pressure versus noninvasive monitoring techniques"
1 Kempenhaeghe Foundation, Sleep Medicine Centre, P.O. Box 61, 5590 AB Heeze, The Netherlands. Electronic address: vandenbusschen@kempenhaeghe.nl.
2 Kempenhaeghe Foundation, Sleep Medicine Centre, P.O. Box 61, 5590 AB Heeze, The Netherlands; Department of Neurology, Donders Institute for Neuroscience, Radboud University Medical Centre, PO Box 9101, 6500HB Nijmegen, The Netherlands.
3 Kempenhaeghe Foundation, Sleep Medicine Centre, P.O. Box 61, 5590 AB Heeze, The Netherlands.
4 Kempenhaeghe Foundation, Sleep Medicine Centre, P.O. Box 61, 5590 AB Heeze, The Netherlands; University of Ghent, Faculty of Medicine and Health Sciences, Department of Internal Medicine, 25 Sint-Pietersnieuwstraat, 9000 Ghent, Belgium.