Hirsch IB, Xu Y, Davis KL, Calingaert B. Patient factors associated with glucagonlike peptide 1 receptor agonist use with and without insulin. Endocr Pract. 2011 Sep 1;17(5):707-16.
Basarir H. Poor, multidimensionally speaking: evidence from South Africa. J Afr Econ. 2011 Jun 1;20(3):463-504. doi: 10.1093/jae/ejr001