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These include:
- Saliva
- buccal smear
- maternal urine
- neonatal urine
- cervical brush biopsy
- cervical biopsy
- high vaginal swab
- blood plasma
- blood serum
- cord blood
- placental biopsy
- fetal membrane biopsy
- amniotic fluid
- subcutaneous fat
- visceral fat
- muscle biopsy
- decidua
- ovarian tissue
- myometrium.
Samples undergo preliminary treatment, including fixation, separation procedures, or RNA later, prior to storage (e.g. -80°C as appropriate).