@article{Kupper2011,
author = {Kupper, N. and Boomsma, D.I. and de Geus, E.J.C. and Denollet, J. and Willemsen, G.},
title= {Nine-year stability of Type D personality: Contributions of genes and environment},
year = {2011},
doi = {10.1097/PSY.0b013e3181fdce54},
journal = {Psychosomatic Medicine},
volume = {73},
number = {1},
pages = {75--82},
}