Reasons for non-response in observational pharmacogenetic research.
van Wieren-de Wijer DB, Maitland-van der Zee AH, de Boer A, Kroon AA, de Leeuw PW, Schiffers P, Janssen RG, Psaty BM, van Duijn CM, Stricker BH, Klungel OH.
van Wieren-de Wijer DB, et al. Among authors: janssen rg.
Pharmacoepidemiol Drug Saf. 2009 Aug;18(8):665-71. doi: 10.1002/pds.1764.
Pharmacoepidemiol Drug Saf. 2009.
PMID: 19462400