Serum 25-hydroxyvitamin D levels and mortality risk in patients with liver cirrhosis: a protocol for a systematic review and meta-analysis of observational studies

MLA

Désirée Völker, et al. “Serum 25-Hydroxyvitamin D Levels and Mortality Risk in Patients with Liver Cirrhosis: A Protocol for a Systematic Review and Meta-Analysis of Observational Studies.” Systematic Reviews, vol. 8, no. 1, Mar. 2019, pp. 1–6. EBSCOhost, https://doi.org/10.1186/s13643-019-0988-6.

APA

Désirée Völker, Frank Grünhage, Stefan Wagenpfeil, Frank Lammert, & Caroline S. Stokes. (2019). Serum 25-hydroxyvitamin D levels and mortality risk in patients with liver cirrhosis: a protocol for a systematic review and meta-analysis of observational studies. Systematic Reviews, 8(1), 1–6. https://doi.org/10.1186/s13643-019-0988-6

Chicago

Désirée Völker, Frank Grünhage, Stefan Wagenpfeil, Frank Lammert, and Caroline S. Stokes. 2019. “Serum 25-Hydroxyvitamin D Levels and Mortality Risk in Patients with Liver Cirrhosis: A Protocol for a Systematic Review and Meta-Analysis of Observational Studies.” Systematic Reviews 8 (1): 1–6. doi:10.1186/s13643-019-0988-6.