[妇产]?高龄初产妇

...学杂志‖—‖医学期刊‖—‖医学学术期刊 关键词]高龄初产妇；心理特征；心理干预；护理 [gap=836]Keywords] elderly primipara; psychological characteristics; psychological intervention; care ...

?高年初产妇

... credit for the elderly 老年的税收优惠减免... elderly population 老年人口 elderly primipara 高年初产妇 ...