TY - `BOOK` AU - Genser, Bernd AU - Fischer, Joachim E. TI - Within- and between-group regression for improving the robustness of causal claims in cross-sectional analysis PB - BioMed Central CY - London PY - 2015 LA - eng SE - 1 Online-Ressource N1 - Aus: Environmental health, 14 (2015), Nr. 60. pp. 1-10. ISSN 1476-069X UR - http://www.ub.uni-heidelberg.de/archiv/19377 UR - http://nbn-resolving.de/urn:nbn:de:bsz:16-heidok-193778 AN - UBHD-67925073 ER -