@article {307, editor = {,}, title = {Digest}, volume = {39}, number = {324}, pages = {307--308}, year = {1989}, publisher = {Royal College of General Practitioners}, issn = {0035-8797}, URL = {https://bjgp.org/content/39/324/307}, eprint = {https://bjgp.org/content/39/324/307.full.pdf}, journal = {British Journal of General Practice} }