Calculi in upper-middle ureter的用法和樣例：
例句
- The ureteral stone was initially impacted in the upper ureter and finally dislodged in the distal segment.
這個(gè)病人的輸尿管結石原本發(fā)生在上段，后來(lái)掉到下段的位置。 - They concluded that depending on stone burden, shock wae lithotripsy might be a good option for initial treatment of most ureteral calculi in children.
他們得出結論，依賴(lài)于結石負荷，沖擊波碎石術(shù)是大部分兒童輸尿管結石初次治療時(shí)的一種好選擇。
