TY - RPRT TI - The HSA: a focus for advancing primary preventive dental programs. AU - J A Coombs AU - J B Silversin PY - 1979 DO - 10.1111/j.1752-7325.1979.tb01835.x UR - https://pubmed.ncbi.nlm.nih.gov/284130/ ID - 284130 ER -