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Grouping of Covariance Matrix QKF Diagonal Elements qi and Their Chosen Values
| Group | Element | Signals | Value |
| 1 | q1, q2, q3 | states in mg | 0.1 |
| 2 | q4, q5 | states in mg/kg | 10 |
| 3 | q6, q7, q8 | states in pmol/liter | 0.1 |
| 4 | q9, q10, q11, q12 | states in pmol/kg | 0.1 |
| 5 | q13 | state in mg/dl | 10 |
