Assessment of methylcitrate and methylcitrate to citrate ratio in dried blood spots as biomarkers for inborn errors of propionate metabolism

Osama Y. Al-Dirbashi^*, Majid Alfadhel, Khalid Al-Thihli, Nahid Al Dhahouri, Claus Dieter Langhans, Zalikha Al Hammadi, Aisha Al-Shamsi, Jozef Hertecant, Jürgen G. Okun, Georg F. Hoffmann, Fatma Al-Jasmi