Table:
Type 1 diabetes
Other names	Diabetes mellitus type 1, insulin-dependent diabetes,[1] juvenile diabetes[2]

A blue circle, the symbol for diabetes.[3]
Pronunciation

/daɪəbiːtəs/

Specialty	Endocrinology
Symptoms	Frequent urination, increased thirst, increased hunger, weight loss[4]
Complications	Diabetic ketoacidosis, nonketotic hyperosmolar coma, poor healing, cardiovascular disease, damage to the eyes[2][4][5]
Usual onset	Relatively short period of time[1]
Duration	Long term[4]
Causes	Body does not produce enough insulin[4]
Risk factors	Family history, celiac disease[5][6]
Diagnostic method	Blood sugar, A1C[5][7]
Prevention	Unknown[4]
Treatment	Insulin, diabetic diet, exercise[1][2]
Frequency	~7.5% of diabetes cases[8]

A merged cell in a table can be described using the JSON {'top-left':(X, Y), 'bottom-right':(Z, W)}. Here, '(X, Y)' represents the top-left and '(Z, W)' the bottom-right cells' (row_id, column_id) of the merged region. Using the displayed table image, identify all such merged cells in this table and report their locations in the given format. Note that the numbering of both row and column IDs starts at 1.

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