@article {thomadakis2018longitudinal,
	title = {Longitudinal and Time-to-Drop-out Joint Models Can Lead to Seriously Biased Estimates when the Drop-out Mechanism Is at Random},
	journal = {Biometrics},
	year = {2018},
	publisher = {Wiley Online Library},
	author = {Thomadakis, Christos and Meligkotsidou, Loukia and Pantazis, Nikos and Touloumi, Giota}
}
