TY - JOUR A1 - Rietsch, Katrin A1 - Godina, Elena A1 - Scheffler, Christiane T1 - Decreased external skeletal robustness in schoolchildren : a global trend? Ten year comparison of Russian and German data Y1 - 2013 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/34394 UR - http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0068195 ER -