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Cadmus-Bertram L., Littman A.J, Ulrich C.M, Stovall R., Ceballos R.M, McGregor B.A, Wang C.Y, Ramaprasad J., McTiernan A..  2013.  Predictors of adherence to a 26-week viniyoga intervention among post-treatment breast cancer survivors. Journal of alternative and complementary medicine (New York, N.Y.). 19(9):751-758.