Lhoëst, G., Wallemacq, P., & Verbeeck, R.-K. (1991). Isolation and Mass-spectrometric Identification of 5 Metabolites of Fk-506, a Novel Macrolide Immunosuppressive Agent, From Human Plasma. Pharmaceutica Acta Helvetiae, 66(11), 302-306. https://hdl.handle.net/2078.5/137289 (Original work published 1991)