TY - EJOUR T1 - A study on the stability of urinary free catecholamines and free methyl-derivatives at different pH, temperature and time of storage AU - Roberts, Norman B. AU - Higgins, Gerald AU - Sargazi, Mansour PY - 2009 LA - und PB - Kooperation de Gruyter JO - Clinical Chemistry and Laboratory Medicine DO - 10.1515/CCLM.2010.017 ER -