DOI: 10.1055/s-00000144

Zeitschrift für Orthomolekulare Medizin

References

Bergman P, Sperneder S, Höijer J. et al.
Low vitamin d levels are associated with higher opioid dose in palliative cancer patients – results from an observational study in sweden.

PLoS One 2015;
10 (05) e0128223

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