与"birth difficulty"相近的词条

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• birth-dath ratio
• birth-death ratio
• birth defect、birth-defect
• birth defect(s)、birth defects
• birth defects monitoring program
• birth difficulty
• birth educater
• birth fracture
• birth grant
• birth history
• birth injuries
• birth injuries of brachial plexus
• birth injury
• birth injury of adrenal
• birth injury of newborn
• birth injury to brain

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