@misc{indiciaef956a2368add, title = {Letters to the editor.}, author = {A J Gijsbers and G Whelan and N Heather and J George and J H Forbes}, year = {1990}, doi = {10.1080/09595239000185381}, url = {https://pubmed.ncbi.nlm.nih.gov/16840152/}, note = {Source identifier: 16840152} }