I31, I32, I38, D31, D63, D64, D72, D83, D91, H11, H20, H50, O50, P16, Z18
I31, I32, I38, D31, D63, D64, D72, D83, D91, H11, H20, H50, O50, P16, Z18
J13 Early childhood stimulation; other codes: I20, I25, I30, I38
H24, I38, C93, H53
D74, D83, I38, O12
J61, R23, R12, I38
Health, Education, and Welfare, Microeconomics
J24, J64, J68, I38
I15, I38, J22, J29, O18
I38, J16