Self-reported mindfulness and cortisol during a Shamatha meditation retreat
Health Psychology (2013) - Comment
pubmed: 23527522  doi: 10.1037/a0031362  issn: 1930-7810  issn: 0278-6133 

Tonya L. Jacobs, Phillip R. Shaver, Elissa S. Epel, Anthony P. Zanesco, Stephen R. Aichele, David A. Bridwell, Erika L. Rosenberg, Brandon G. King, Katherine A. MacLean, Baljinder K. Sahdra, Margaret E. Kemeny, Emilio Ferrer, B. Alan Wallace, Clifford D. Saron