Electric Impedance Recording - A Noninvasive Method of Rejection DiagnosisJohannes Mueller, Henning Warnecke, Onnen Grauhan, Birgit Nelson, Tatjana Cohnert and Roland HetzerJ Extra Corpor Technol, 23 3 (1991) 49-55DOI: https://doi.org/10.1051/ject/199123349