@article {392, editor = {,}, title = {Digest}, volume = {39}, number = {326}, pages = {392--394}, year = {1989}, publisher = {Royal College of General Practitioners}, issn = {0035-8797}, URL = {https://bjgp.org/content/39/326/392.4}, eprint = {https://bjgp.org/content/39/326/392.4.full.pdf}, journal = {British Journal of General Practice} }