Figure 1: Flow chart of the study – Depicts the flow of the study. All 170 infants recruited for the study, underwent GM1, 144 infants underwent GM2 and 147 infants underwent GM3. 39 infants were excluded from the analysis since they had missed the GM2 or GM3 assessment. The reasons were not being able to come to the follow-up clinic (n = 20), attempted assessment, and failed (n = 1), and 2 infants had expired. The final number of infants included for analysis was 131.