(Q68800279)
Statements
A multi-centre study on completeness of urine collection in 11 European centres. I. Some problems with the use of creatinine and 4-aminobenzoic acid as markers of the completeness of collection (English)
Tuomilehto J
Knuiman JT
Hautvast JG
van der Heyden L
Geboers J
Joossens JV
Tornqvist H
Isaksson B
Pietinen P