@article {175, editor = {,}, title = {Digest}, volume = {39}, number = {321}, pages = {175--176}, year = {1989}, publisher = {Royal College of General Practitioners}, issn = {0035-8797}, URL = {https://bjgp.org/content/39/321/175}, eprint = {https://bjgp.org/content/39/321/175.full.pdf}, journal = {British Journal of General Practice} }