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. Author manuscript; available in PMC: 2010 Oct 25.
Published in final edited form as: Clin Chem. 2005 Jul 21;51(9):1733–1735. doi: 10.1373/clinchem.2005.054361

Fig. 1.

Fig. 1

Concentrations of DA in TYR solutions as a function of duration of storage at 4 °C (●) and −70 °C (○; A), and increment in arterial plasma DA concentration as a function of infusate DA concentration in humans undergoing intravenous infusion of TYR (B).

(A), equation for the line: y = 38(0.31x); r = 0.99. (B), ○, patients with chronic orthostatic intolerance; □, patients with chronic autonomic failure; △, patients status post bilateral thoracic sympathectomies for hyperhidrosis; ◇, healthy volunteer.