$\backslash$table$[[\backslash$table$[[$Environmental health$],[$research$]],\backslash$table$[[$Efficacy of the preventive,$],[$diagnostic$,$ and therapeutic$],[$services applied to individual$],[$patients$]]],[\backslash$table$[[$Comparative effectiveness$],[$research$]],\backslash$table$[[$Frequency$,$ distribution, and$],[$determinants of health and$],[$diseases among populations$]]],[$Clinical research,$\backslash$table$[[$Understanding the actual$],[$results of health care$],[$practices and interventions$]]],[$Outcomes research,$\backslash$table$[[$Services that attempt to$],[$promote the health of$],[$populations by treating their$],[$environments$]]],[$Biomedical research,$\backslash$table$[[$Informing with evidence on$],[$the effects and effectiveness$],[$of treatment options based$],[$on studies of methods of$],[$delivering care$]]]]$