Clinical Features in Aromatic L-Amino Acid Decarboxylase (AADC) Deficiency: A Systematic Review

Table 2

Type of studies included.

Type of studies	No. of records	References
Case report	18	[8, 13–15, 18, 22, 25, 27, 29, 30, 32–37, 39, 41]
Case series	10	[1, 3, 19–21, 26, 38, 40, 42, 46]
Original article	8	[7, 23, 28, 31, 43, 45, 47, 48]
Short communication	3	[16, 17, 44]
Retrospective study	1	[2]
Comparative study	1	[24]