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| Methods | Randomised controlled trial. |
| Participants | Pregnant women with gestation 20‐34 weeks. |
| Interventions | Osteoform capsules 2 tablets daily (dosage not stated) vs no treatment. |
| Outcomes | Serum calcium level, symptoms, PIH, IUGR. |
| Notes | This trial is reported in Chinese language only and has been sent for translation. |
Ca: Calcium g/d: grams per day IUGR: intrauterine growth restriction PIH: pregnancy‐induced hypertension
