设计：对28名前期参与鼻腔冲洗定性研究的患者进行深度随访定性研究。所有的参与者每天接受鼻腔冲洗。
DESIGN: qualitative study using in-depth long interviews of 28 participants in a prior qualitative nasal irrigation study. All participants were receiving daily nasal irrigation.
前期参与一些项目的机械设计工作，了解公司设备标准和内部项目流程以及公司擅长的技术领域，为下一阶段的工作打好基础；
Join in mechanical design for some project at earlier stage, know company machine standard, internal project process and company adept technical area.
5位导演和14位编剧参与了各阶段的前期制作。
Five different directors and 14 writers were involved in various stages of pre-production.
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