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PHA‐L‐labelled varicosities within the brainstem
| Brainstem regions | PHA‐L‐labelled varicosities |
|---|---|
| Kölliker‐Fuse | +++ |
| Lateral parabrachial nucleus | +++ |
| Parafacial respiratory group | ++ |
| Raphe pallidus | +++ |
| Retrotrapezoid nucleus | ++ |
+++; high expression, ++; moderate expression, +; low expression
