Sathyanarayanan Ramarao, Usha Sathyanarayanan
CRA Grid - A preliminary development and calibration of a paper-based objectivization of caries risk assessment in undergraduate dental education
Journal of conservative dentistry : JCD
specially collected data adults panel study income dynamics used provide evidence longerterm effects head start early intervention program poor preschoolage children whites attended head start relative siblings significantly likely complete high school attend college possibly higher earnings early twenties africanamericans participated head start less likely booked charged crime evidence positive spillovers older head start children younger siblings