Author Question: At one year of age, most infants have vocabularies that are limited to "mama" and "dada." (Read 94 times)

Diane

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At one year of age, most infants have vocabularies that are limited to "mama" and "dada."
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BAOCHAU2803

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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

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