TY - RPRT TI - Multichannel intraluminal impedance: general principles and technical issues. AU - Radu Tutuian AU - Donald O Castell PY - 2005 DO - 10.1016/j.giec.2004.10.009 UR - https://pubmed.ncbi.nlm.nih.gov/15722239/ ID - 15722239 ER -