Table 1.

Additional information of the human normal and NTD samples

Sample type	Tissue	Folate level (ng/mg)	Gender	Gestational weeks
Normal	Brain	0.222133333	Female	17
Normal	Brain	0.194133333	Female	18
Normal	Brain	0.2264	Male	20
Normal	Brain	0.257866667	Female	18
Normal	Brain	0.2362	Male	19
Normal	Brain	0.15918396	Male	16
Normal	Brain	0.24133	Male	18
Normal	Brain	0.204933333	Male	16
NTD	Brain	0.064133333	Female	25
NTD	Brain	0.0746	Female	25
NTD	Brain	0.030333333	Female	32
NTD	Brain	0.065133333	Female	34
NTD	Brain	0.061866667	Male	31
NTD	Brain	0.056733333	Male	21
NTD	Brain	0.068933333	Female	25
NTD	Brain	0.043933333	Male	39