Trigeminal subnucleus caudalis: beyond homologies with the spinal dorsal horn

aDepartment of Surgery, Brown University School of Medicine, Rhode Island Hospital, Providence, RI 02903 USA bDepartment of Neuroscience, Brown University School of Medicine, Rhode Island Hospital, Providence, RI 02903 USA cFaculty of Dentistry, University of Toronto, Toronto, Ontario M5G 1G6, Canada *Corresponding author Tel.: +1-401-444-4277; fax: +1-401-444-8052. Received 14 August 2000; received in revised form 8 September 2000; accepted 20 September 2000.