The primary working hypothesis was that motion preservation would reveal beneficial effects with regard to adjacent level preservation but that it might be disadvantageous with regard to the progression of the index-segment's facet joint degeneration

the new century primary primary primary primary primary The primary working hypothesis was that motion preservation would reveal beneficial effects with regard to adjacent level preservation but that it might be disadvantageous with regard to the progression of the index-segment's facet joint degeneration I in the primary school什么意思 working around the working in the office the ordinary working folks 的英文翻译是get to the primary school还是go to the primary school? Working in the sun .Working in the rain. The bookstore is beside the Primary School同意问句 he is the __engineer in the factorymain major chief primary Working For The Man 歌词 Working On The Highway 歌词 The fourth day on working I’m at the gym working out. 不懂working out