Objective To survey iodine intake of breast feeding infants and lactating women.
目的调查母乳喂养婴儿及哺乳母亲碘摄入量。
Objective To survey the difference of cognition on nursing system culture between nurse and patient.
目的了解护理人员和患者对护理制度文化的认知差异。
Objective: To explore the sampling method of telephone survey.
目的:探讨电话访问的抽样方法。
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