- Bacterial vaginosis (BV)
- Baseline/patient characteristics
- patient characteristics
- baseline characteristics
- Bias
- Biochemical pregnancy
- beta
- beta-hcg
- biochemical loss
- biochemical pregnancy loss
- β-hCG
- Biomarker
- Marker
- markers
- Bivalent
- Blastocoel
- Blastocyst
- blast
- blasts
- Body mass index (BMI)
- Body mass index
- BMI
- underweight
- normal weight
- overweight
- obese
