TY - RPRT TI - DHPR activity decrease in dried blood spots stored at 4 degrees C. AU - G Lenzi AU - D Pistone AU - E Zammarchi AU - M P Benini AU - A La Torre AU - D Matteoni PY - 1989 DO - 10.1159/000469049 UR - https://pubmed.ncbi.nlm.nih.gov/2731491/ ID - 2731491 ER -