| 41. | Research and brain autopsies have implicated both dopaminergic system and iron insufficiency in the substantia nigra.
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| 42. | Some authorities place the subspecies " v-nigra " as a separate species.
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| 43. | Up to grows Scots pine ( Pinus sylvestris ) and black pine ( Pinus nigra ).
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| 44. | In 1791 Samuel Thomas von S�mmerring alluded to this structure, calling it the substantia nigra.
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| 45. | Another cycle, Porta Nigra, dominated by the idea of death, appeared in 1934.
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| 46. | Dorsey releases Newt, reasoning that " hanging another Nigra ain't enough this time.
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| 47. | The Natchez Indians referred to the area as the Juzlin's Nigra or Walnut Hills.
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| 48. | It is a through station, about east of the inner city and the Porta Nigra.
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| 49. | Coushattas artists from Texas and Louisiana used the water oak ( " Quercus nigra"
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| 50. | Parkinson's disease attacks cells in a tiny portion of the brain called the substantia nigra.
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