BMJ : British medical journal
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Observational Study
Black medicine: an observational study of doctors' coffee purchasing patterns at work.
To evaluate doctors' coffee consumption at work and differences between specialties. ⋯ Doctors commonly use coffee as a stimulant. Substantial variation exists between specialties. Surgeons drink notably more coffee than physicians, with orthopaedic surgeons consuming the greatest amount in the communal cafeteria setting, though this might reflect social tendencies rather than caffeine dependency. Hierarchical position is positively correlated with coffee consumption and generosity with regard to buying rounds of coffee.