flowchart LR

    subgraph "Population Data Sources"
    
        acs_source["acs_population"]

        acs_population["merge_pop()"]

        subgraph "Supplementary Sources"
            decia_territory_population["decia_2010 / decia_2020"]
            census_pop_estimates["census_pop_estimates"]
        end
        
        
    end

    
        subgraph "Source Includes Population"
            cdc_hiv_data["cdc_hiv_data"]
            cdc_wisqars_data["cdc_wisqars / black_men / youth"]
            cdc_wonder_data["cdc_wonder_data"]
            phrma_data["phrma / phrma_brfss"]
            vera_incarceration_county["vera_incarceration_county"]
        end
        subgraph "Source Dependent on ACS for Population"
            
            cdc_restricted["cdc_restricted"]
            geo_context["geo_context"]
        
            bjs_incarceration["bjs_incarceration"]
            cawp_data["cawp_data"]
            
            chr_data["chr_data"]
            
            graphql_ahr_data["graphql_ahr_data"]
            kff_vaccination["vaccination cdc national / kff state / cdc county"]
            maternal_mortality_data["maternal_mortality_data"]
        end
    

    User["User"]

    %% Connections from Step 1 to Step 2
    
    acs_source --> acs_population
    census_pop_estimates --> cdc_restricted
    decia_territory_population --> acs_population

    %% Connections from Step 2 to Step 3
    acs_population --> bjs_incarceration
    
    acs_population --> cawp_data
    
    acs_population --> cdc_restricted
    cdc_restricted -.->|"age-adjust"|cdc_restricted
    
    acs_population --> chr_data
    acs_population --> geo_context
    acs_population --> graphql_ahr_data
    acs_population --> kff_vaccination
    acs_population --> maternal_mortality_data

    %% Dotted connections from all Topic Data Sources to User
    
    cdc_hiv_data -.->|"age-adjust"|cdc_hiv_data
    cdc_hiv_data -.-> User
    cdc_wisqars_data -.-> User
    cdc_wonder_data -.-> User
    phrma_data -.-> User
    vera_incarceration_county -.-> User
    bjs_incarceration -.-> User
    cawp_data -.-> User
    cdc_restricted -.-> User
    chr_data -.-> User
    graphql_ahr_data -.-> User
    kff_vaccination -.-> User
    maternal_mortality_data -.-> User
    geo_context -.-> User