- Madubuonwu, Joy, author2
- Mahato, Bisundev, author1
- Majerol, Melissa, author2
- Marquez, Ivan, author1
- Massachusetts General Hospital.2
- McCarthy, Douglas, author3
- Meng, Ying-Ying, author1
- Merlis, Mark, author1
- Mugo, Brian, author.1
- Munnell, Alicia H., author3
- Musumeci, MaryBeth, author10