One's lineal ascendants and lineal descendants shall be one's lineal blood relatives. One's brothers and sisters, brother's and sister's lineal descendants, brothers and sisters of one's lineal ascendants and such brother's and sister's lineal descendants shall be considered collateral blood relatives. <Amended on Jan. 13, 1990>
Civil Act — Article 768 (Definition of blood relatives)
민법 제768조
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