From f10d2b208e09291a0ad7d9ca24e7790368a60c05 Mon Sep 17 00:00:00 2001
From: Lauren Liao <ldliao@berkeley.edu>
Date: Mon, 29 Jan 2024 12:27:42 -0800
Subject: [PATCH] Update README.md with BRFSS citation

---
 README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index a1454a7..f2cf3b8 100644
--- a/README.md
+++ b/README.md
@@ -104,7 +104,8 @@ since its highly correlated with the outcome.
 
 ## Acknowledgement
 
-Ford, C. 2018. “Getting Started with Matching Methods.” UVA Library
+- Centers for Disease Control and Prevention (CDC). Behavioral Risk Factor Surveillance System Survey Questionnaire. Atlanta, Georgia: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, 2015.
+- Ford, C. 2018. “Getting Started with Matching Methods.” UVA Library
 StatLab.
 <https://library.virginia.edu/data/articles/getting-started-with-matching-methods/>
 (accessed Jan 29, 2024).