BibTex format
@article{Röher:1989,
author = {Röher, HD and Goretzki, PE and Wahl, RA and Frilling, A},
journal = {Chirurg},
pages = {384--390},
title = {[Intrathoracic struma].},
url = {https://www.ncbi.nlm.nih.gov/pubmed/2667906},
volume = {60},
year = {1989}
}