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External Data Source

Source

Regular Expression
(((0[13578]|10|12)([-./])(0[1-9]|[12][0-9]|3[01])([-./])(\d{4}))|((0[469]|11)([-./])([0][1-9]|[12][0-9]|30)([-./])(\d{4}))|((2)([-./])(0[1-9]|1[0-9]|2[0-8])([-./])(\d{4}))|((2)(\.|-|\/)(29)([-./])([02468][048]00))|((2)([-./])(29)([-./])([13579][26]00))|((2)([-./])(29)([-./])([0-9][0-9][0][48]))|((2)([-./])(29)([-./])([0-9][0-9][2468][048]))|((2)([-./])(29)([-./])([0-9][0-9][13579][26])))