| serotonin role in depression | 1.01 | 0.7 | 872 | 28 | 52 |
| serotonin in depression and anxiety role | 0.52 | 1 | 5403 | 40 | 51 |
| what role does serotonin play in depression | 0.17 | 0.9 | 4420 | 43 | 94 |
| role of serotonin and dopamine in depression | 0.33 | 0.5 | 3590 | 44 | 21 |
| serotonin in the brain and depression | 0.44 | 0.1 | 5692 | 37 | 31 |
| what has serotonin to do with depression | 1.67 | 0.2 | 7100 | 40 | 86 |
| is serotonin linked to depression | 1.32 | 0.5 | 6580 | 33 | 82 |
| serotonin and depression connection | 1 | 1 | 6224 | 35 | 39 |
| does serotonin affect depression | 0.72 | 0.9 | 2098 | 32 | 87 |
| is serotonin related to depression | 0.23 | 0.5 | 2157 | 34 | 28 |
| relationship between serotonin and depression | 0.53 | 0.8 | 4320 | 45 | 28 |
| does taking serotonin help with depression | 1.69 | 0.5 | 5665 | 42 | 97 |
| serotonin theory of depression | 0.34 | 0.1 | 3870 | 30 | 48 |
| serotonin levels and depression | 2 | 0.7 | 4114 | 31 | 16 |
| how does increasing serotonin help depression | 0.27 | 0.2 | 1754 | 45 | 83 |
| article on serotonin levels on depression | 0.82 | 0.1 | 4374 | 41 | 37 |
