| I. BL Aug. 2019 | II. 3 M Nov. 2018 | III. 6 M Feb. 2019 | IV. 9 M May 2019 | V. 12 M Aug. 2019 | VI. 15 M Nov. 2019 | VII. 18 M Feb. 2020 | Not evaluated | VIII. 24 M Aug. 2020 | IX. 27 M Nov. 2020 | ANOVA |
Group E n = 7 | 6.2 ± 3.1 | 5.1 ± 2.9 | 5.7 ± 4.2 | 5.9 ± 5.1 | 4.3 ± 3.1 | 3.6 ± 2.6 | 3.1 ± 1.2 |
| 8.3 ± 2.1 | 7.7 ± 3.7 | ns |
Group F n = 15 | 6.7 ± 3.4 | 6.9 ± 3.3 | 7.6 ± 3.0 | 5.7 ± 2.3 | 6.1 ± 1.4 | 5.6 ± 1.0 | 4.5 ± 1.4 |
| 8.1 ± 1.7 | 7.2 ± 1.2 | II > VII* III > VII* IV < VIII* VI < VIII* VII < VIII* VII < IX* |