TY  - BOOK
AU  - Twisk, Jos W. R.
TI  - Applied mixed model analysis: a practical guide 
SN  - 9781108727761 (pbk. : alk. paper)
U1  - 519.538 
PY  - 2019///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Medical statistics
ER  -