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    Serotonin, Serum
    1 X $115.50 = $115.50
    Rheumatoid Factor
    1 X $33.00 = $33.00
    Parathyroid Hormone (PTH), Intact
    1 X $34.00 = $34.00
    Thyroxine Free (FT4)
    1 X $30.00 = $30.00