Author
|
Country
|
Type of study
|
Number of participants (T/C)
|
Intervention
|
Follow-up
|
Adverse events
|
---|
Hiller et al. 2018 [148]
|
USA
|
RCT
|
27/24
|
Vitamin D3 10,000 IU/day
|
16 weeks
|
None
|
Suzuki et al. 2013 [41]
|
Japan
|
RCT
|
56/58
|
Vitamin D3 1200 IU/day
|
12 months
|
None
|
- T treatment group, C control group, PD Parkinson’s disease