...intensity of x-ray so the x-ray film is not clear to distinguish the bone and the muscular tissue. 2. Although X-ray ionize our body tissues, but...
不可以 打針打在甚麼地方是有要求的 有些藥要求打在機肉 intra- muscular injection 很多疫苗都是這樣 有些抗生素要求打在靜脈 intra- venus injection 很多強...