diff --git a/docs/src/examples.md b/docs/src/examples.md
index b4fab8b..c147bdc 100644
--- a/docs/src/examples.md
+++ b/docs/src/examples.md
@@ -76,11 +76,11 @@ png(p, "plot2.png")
 
 p = pkplot(ds; elim = true, ls = true)
 
-png(p[1], "plot3.png")
+png(p[1][2], "plot3.png")
 
 p = pkplot(ds; typesort = :Subject, pagesort = :Formulation)
 
-png(p[1], "plot4.png")
+png(p[1][2], "plot4.png")
 ```
 
 #### Plot 1
diff --git a/src/MetidaNCA.jl b/src/MetidaNCA.jl
index aad1d75..f46db2a 100644
--- a/src/MetidaNCA.jl
+++ b/src/MetidaNCA.jl
@@ -28,8 +28,9 @@ export pkimport, upkimport, pdimport, nca!, nca, DoseTime, ElimRange, LimitRule,
 auc_sparse,
 setdosetime!, setkelauto!, setkelrange!, applylimitrule!, setbl!, setth!,
 pkplot,
-getkeldata, getkelauto, getkelrange, getdosetime, getbl, getth, subset
-metida_table
+getkeldata, getkelauto, getkelrange, getdosetime, getbl, getth, subset,
+metida_table,
+PKSubject, UPKSubject, PDSubject, NCAResult
 
 function __init__()
     @require Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80" begin