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Carley Nickerson poses with her son, Danny, who will turn 6 on Friday. Danny, who has an inoperable brain tumor, has said all he wants for his sixth birthday are birthday cards. People worldwide have been responding to his request in overwhelming numbers. (Staff photo by Martin Gavin)

FOXBORO - Carley Nickerson says all her son wants for his sixth birthday are some birthday cards.

A birthday card, she says, is a thoughtful gesture to let Danny know that someone is thinking of him on his special day, and will make him feel important and loved.