diff --git a/NAMESPACE b/NAMESPACE
index 3dcacc76..23412536 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -15,15 +15,8 @@ export(process_agd)
 export(resid_plot)
 export(survfit_makeup)
 import(DescTools)
+import(MASS)
+import(boot)
+import(graphics)
 import(stats)
-importFrom(graphics,abline)
-importFrom(graphics,axis)
-importFrom(graphics,hist)
-importFrom(graphics,legend)
-importFrom(graphics,lines)
-importFrom(graphics,par)
-importFrom(graphics,points)
-importFrom(survival,Surv)
-importFrom(survival,cox.zph)
-importFrom(survival,coxph)
-importFrom(survival,survfit)
+import(survival)
diff --git a/man/maic_tte_unanchor.Rd b/man/maic_tte_unanchor.Rd
index 1cdd650a..30360592 100644
--- a/man/maic_tte_unanchor.Rd
+++ b/man/maic_tte_unanchor.Rd
@@ -32,6 +32,9 @@ maic_tte_unanchor(
 
 \item{transform}{a character string, pass to \code{\link[survival]{cox.zph}}}
 }
+\value{
+A list of KM plot, analysis table, and diagnostic plot
+}
 \description{
 Unanchored MAIC for time-to-event endpoint
 }
diff --git a/man/maicplus-package.Rd b/man/maicplus-package.Rd
new file mode 100644
index 00000000..c7fbe558
--- /dev/null
+++ b/man/maicplus-package.Rd
@@ -0,0 +1,14 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/maicplus.R
+\docType{package}
+\name{maicplus-package}
+\alias{maicplus-package}
+\title{maicplus: open source R package for MAIC}
+\description{
+A package for running matching adjusted indirect comparison
+}
+\details{
+This package facilitates performing matching adjusted indirect comparison
+(MAIC) analysis where the endpoint of interest is either time-to-event
+(e.g. overall survival) or binary (e.g. objective tumor response).
+}