| Título | Tipo |
|---|---|
| Regenerative Biomaterials | Journal |
| Regenerative Medicine Research | Journal |
| Regional Science and Urban Economics | Journal |
| Regional Studies | Journal |
| Rehabilitation Research and Practice | Journal |
| Remote Sensing in Ecology and Conservation | Journal |
| Reproduction | Journal |
| Reproduction in Domestic Animals = Zuchthygiene | Journal |
| Reproductive Biology and Endocrinology : RB&E | Journal |
| Reproductive Health | Journal |
| Reproductive Medicine and Biology | Journal |
| Reproductive Toxicology | Journal |
| Research and Reports in Urology | Journal |
| Research in Cardiovascular Medicine | Journal |
| Research in developmental disabilities | Journal |
| Research Policy | Journal |
| Research Synthesis Methods | Journal |
| Respiratory Medicine Case Reports | Journal |
| Respiratory Research | Journal |
| Respirology | Journal |