ZAGREB, April 2 (Hina) - The federation of autism associations (SUZAH) on Tuesday organised a release of blue balloons in Zagreb's main square as well as in a few more Croatian cities to mark the twelfth annual World Autism Awareness Day, observed on April 2, and on that occasion activists underscored that an estimated 12,000 Croatians suffer from developmental disorders characterized by difficulties with social interaction and communication and by restricted and repetitive behavior.
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