TY - RPRT TI - Reporting on statistical methods to adjust for confounding: a cross-sectional survey. AU - Marcus Müllner AU - Hugh Matthews AU - Douglas G Altman PY - 2002 DO - 10.7326/0003-4819-136-2-200201150-00009 UR - https://pubmed.ncbi.nlm.nih.gov/11790063/ ID - 11790063 ER -