Erle A, Landeck E, Nenning K, Rother U, Baum A
Stomatol DDR. 1980 Jan;30(1):50-1.
Many practices are available for placing a dental radiographic film in the mouth. A uniform system is proposed to make the best of the advantages offered by the standarization of the intra-oral X-ray technique.
放置口腔X光片有多种方法。现提出一种统一的系统，以充分利用口腔内X光技术标准化所带来的优势。
