Table:
Epilepsy
Other names	Seizure disorder

Generalized 3 Hz spike-and-wave discharges on an electroencephalogram
Specialty	Neurology
Symptoms	Periods of vigorous shaking, nearly undetectable spells[1]
Duration	Long term[1]
Causes	Unknown, brain injury, stroke, brain tumors, infections of the brain, birth defects[1][2][3]
Diagnostic method	Electroencephalogram, ruling out other possible causes[4]
Differential diagnosis	Fainting, alcohol withdrawal, electrolyte problems[4]
Treatment	Medication, surgery, neurostimulation, dietary changes[5][6]
Prognosis	Controllable in 70%[7]
Frequency	39 million / 0.5% (2015)[8]
Deaths	125,000 (2015)[9]

This image shows a table. Determine whether this table contains merged cells and output merged cell areas with the JSON format of {'top-left':(X, Y), 'bottom-right':(Z, W)}, where X, Y, Z and W represent the indices of the first row, the first column, the last row, and the last column in the merged region. Row and column indices are numberd from 1.

The merged cell area is: {'top-left':(1, 1), 'bottom-right':(1, 2)}.