TY - JOUR AU - Böhning, Dankmar AU - van der Heijden, Peter G. M. PY - 2015 DA - 2015/09/25 TI - Erratum to: Correspondence: Some general points regarding Ledberg and Wennberg, BMC Medical Research Methodology 2014 April 27;14:58 JO - BMC Medical Research Methodology SP - 76 VL - 15 IS - 1 SN - 1471-2288 UR - https://doi.org/10.1186/s12874-015-0065-3 DO - 10.1186/s12874-015-0065-3 ID - Böhning2015 ER -