| clinical trial | Q30612 |
| P3098 | ClinicalTrials.gov ID | NCT03167008 |
| P582 | end time | 2020-01-01 | |
| P1050 | medical condition | infertility | Q179399 |
| P1132 | number of participants | 60 | |
| P4844 | research intervention | (5R)-24,25-Dihydroxyvitamin D | Q27161510 |
| calcium oxalate | Q412399 | ||
| P580 | start time | 2019-11-01 | |
| P8363 | study type | observational study | Q818574 |
| P1476 | title | Correlation Between the Level of Vitamin D and Semen Parameters |
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