| Intraindividual Biological variation in the N-acetyl-beta-glucosaminidase/creatininium ratio for first morning urine, Huguet J, Fuentes-Arderiu X, Ferré C, 1989, Clin Chem, 35, 1256 | 9.3 | 31.7 | Mixed | Healthy (excl pregnant) | Serum |
| Biological variation estimates obtained from 91 healthy study participants for 9 enzymes in serum, Carobene A, Roraas T, Solvik UO, Sylte MS, Sandberg S, Guerra E, Marino I, Jonker N, Barla G, Barlett WA, Fernández-Calle P, Díaz-Garzón J, Tosato F, Plebani M, Coskun A, Serteser M, Unsal I and Ceriotti F, 2017, Clin Chem, 63, 1141-50 | 6.3 | 24.9 | Mixed | Healthy (excl pregnant) | Serum |
| Biological variation estimates obtained from 91 healthy study participants for 9 enzymes in serum, Carobene A, Roraas T, Solvik UO, Sylte MS, Sandberg S, Guerra E, Marino I, Jonker N, Barla G, Barlett WA, Fernández-Calle P, Díaz-Garzón J, Tosato F, Plebani M, Coskun A, Serteser M, Unsal I and Ceriotti F, 2017, Clin Chem, 63, 1141-50 | 5.9 | 23.3 | Males | Healthy (excl pregnant) | Serum |
| Total amylase and pancreatic isoamylase in serum and urina:considerations from data on biological variation, Cummings ST, Fraser CG. , 1989, Ann Clin Biochem, 26, 335-340 | 14.0 | 28.0 | Mixed | Healthy (excl pregnant) | Serum |
| Biological variation estimates obtained from 91 healthy study participants for 9 enzymes in serum, Carobene A, Roraas T, Solvik UO, Sylte MS, Sandberg S, Guerra E, Marino I, Jonker N, Barla G, Barlett WA, Fernández-Calle P, Díaz-Garzón J, Tosato F, Plebani M, Coskun A, Serteser M, Unsal I and Ceriotti F, 2017, Clin Chem, 63, 1141-50 | 6.8 | 26.0 | Males | Healthy (excl pregnant) | Serum |
| Variabilità biologica intra-individuo: rassegna della letteratura, contributo sperimentale e considerazioni critiche, Chitto G, Fabi A, Franzini C, Galletta G, Leonardi A, Marelli M and Morelli AM, 1994, Biochim Clin, 18, 673-690 | | | Mixed | Healthy (excl pregnant) | Serum |
