- Retin-A
- Retin-A-Micro
- retina
- retinoblastoma
- retinoic acid
- retinoid
- retinol
- retinyl palmitate
- retromolar trigone
- retroperitoneal
- retropubic prostatectomy
- retrospective
- retrospective cohort study
- retrospective study
- retroviral vector
- retrovirus
- reverse transcription
- ReVia
- Revlimid
- RevM10 gene
- Reye syndrome
- rF-TRICOM
- RFT5-dgA immunotoxin
- RG7204
- rhabdoid tumor