“…Sample sizes ranged from 30 to 310. Treatments varied across studies: 22 studies reported that patients received chemotherapy [3,4,5,6,7,8,9,12,14,17,24,25,26,27,28,29,30,31,37,38,39,40], which was sometimes in combination with other treatments; 17 studies reported that patients received mastectomy [3,6,7,9,10,12,13,17,23,27,30,31,32,33,34,37,38]; other studies mentioned only routine nursing care. A complete list of the characteristics of the included studies is shown in supplementary table 1 (available at http://www.karger.com/ProdukteDB/produkte.asp?doi=487073 ).…”