| 1 | Magnetic Resonance Imaging 🔗 | 2007- | Clinical Key | 23 |
| 2 | Magnetic Resonance Imaging Clinics of North America 🔗 | 2007- | Clinical Key | 17 |
| 3 | Manual Therapy 🔗 | (2007-2016) | Clinical Key | 19 |
| 4 | Maternal-Fetal Medicine 🔗 | 2019- | Ovid | 21 |
| 5 | Mathematical Medicine and Biology 🔗 | 1996- | Oxford | 17 |
| 6 | Maturitas 🔗 | 2007- | Clinical Key | 18 |
| 7 | Mayo Clinic Proceedings 🔗 | 2007- | Clinical Key | 22 |
| 8 | MCN, The American Journal of Maternal Child Nursing 🔗 | 1996- | Ovid | 22 |
| 9 | Medical Care 🔗 | 1996- | Ovid | 17 |
| 10 | Medical Clinics of North America 🔗 | 2007- | Clinical Key | 20 |
| 11 | Medical Dosimetry 🔗 | 2007- | Clinical Key | 20 |
| 12 | Medical Engineering and Physics 🔗 | 2007- | Clinical Key | 19 |
| 13 | Medical Humanities 🔗 | 2000- | BMJ | 21 |
| 14 | Medical Hypotheses 🔗 | 2007- | Clinical Key | 23 |
| 15 | Medical Innovation & Business 🔗 | (2009-2010) | Ovid | 19 |
| 16 | Medical Law Review 🔗 | 1996- | Oxford | 20 |
| 17 | Medical Mycology 🔗 | 1996- | Oxford | 84 |
| 18 | Medicine 🔗 | 2007- | Clinical Key | 26 |
| 19 | Medicine 🔗 | 1922- | Ovid | 17 |
| 20 | Medicine & Science in Sports & Exercise 🔗 | 1995- | Ovid | 21 |
| 21 | Medicine: Case Reports & Study Protocols 🔗 | 2020- | Ovid | 20 |
| 22 | MedMat 🔗 | 2024- | Ovid | 22 |
| 23 | Melanoma Research 🔗 | 2000- | Ovid | 17 |
| 24 | Menopause 🔗 | 2000- | Ovid | 20 |
| 25 | Mental Health and Physical Activity 🔗 | 2008- | Clinical Key | 20 |
| 26 | Metabolism 🔗 | 2007- | Clinical Key | 17 |
| 27 | Metabolism Open 🔗 | 2020- | Clinical Key | 21 |
| 28 | MHR: Basic Science of Reproductive Medicine 🔗 | 1996- | Oxford | 19 |
| 29 | Microscopy 🔗 | 1996- | Oxford | 18 |
| 30 | Military Medicine 🔗 | 1997- | Oxford | 18 |
| 31 | Minerva Anestesiologica 🔗 | 1998- | Subscription | 22 |
| 32 | Modern Pathology 🔗 | 2000- | Subscription | 27 |
| 33 | Modern Rheumatology 🔗 | 2000- | Oxford | 17 |
| 34 | Molecular Biology and Evolution 🔗 | 1996- | Oxford | 23 |
| 35 | Molecular Endocrinology 🔗 | 1996- | Oxford | 23 |
| 36 | Molecular Human Reproductive 🔗 | 1996- | Oxford | 69 |
| 37 | Molecular Metabolism 🔗 | 2012- | Clinical Key | 27 |
| 38 | Molecular Syndromology 🔗 | 2014- | Karger | 19 |
| 39 | Monographs of the Society for Research in Child Development 🔗 | 1990- | Oxford | 23 |
| 40 | Mucosal Immunology 🔗 | 2012- | Clinical Key | 19 |
| 41 | Multiple Sclerosis and Related Disorders 🔗 | 2012- | Clinical Key | 20 |
| 42 | Musculoskeletal Science and Practice 🔗 | 2017- | Clinical Key | 18 |
| 43 | Music Therapy Perspectives 🔗 | 1996- | Oxford | 17 |
| 44 | Mutagenesis 🔗 | 1996- | Oxford | 21 |