**Contents**


**Reiko Kagawa, Go Tajima, Takako Maeda, Fumiaki Sakura, Akari Nakamura-Utsunomiya, Keiichi Hara, Yutaka Nishimura, Miori Yuasa, Yosuke Shigematsu, Hiromi Tanaka, Saki Fujihara, Chiyoko Yoshii and Satoshi Okada**

Pilot Study on Neonatal Screening for Methylmalonic Acidemia Caused by Defects in the Adenosylcobalamin Synthesis Pathway and Homocystinuria Caused by Defects in Homocysteine Remethylation

Reprinted from: *Int. J. Neonatal Screen.* **2021**, *7*, 39, doi:10.3390/ijns7030039 ............. **85**

**Tomokazu Kimizu, Shinobu Ida, Kentaro Okamoto, Hiroyuki Awano, Emma Tabe Eko Niba, Yogik Onky Silvana Wijaya, Shin Okazaki, Hideki Shimomura, Tomoko Lee, Koji Tominaga, Shin Nabatame, Toshio Saito, Takashi Hamazaki, Norio Sakai, Kayoko Saito, Haruo Shintaku, Kandai Nozu, Yasuhiro Takeshima, Kazumoto Iijima, Hisahide Nishio and Masakazu Shinohara**

Spinal Muscular Atrophy: Diagnosis, Incidence, and Newborn Screening in Japan Reprinted from: *Int. J. Neonatal Screen.* **2021**, *7*, 45, doi:10.3390/ijns7030045 ............. **95**
