By Thoonen Bart P.A.   Schermer Tjard R.J.   Akkermans Reinier P.   den Otter Joost J.   Grol Richard   Van Schayck Onno C.P.   in Scandinavian Journal of Primary Health Care

ISSN:0281-3432|20|1|60-64

Informa Healthcare‎(2002)‎

Access to resources Favorite 12.347942

By Ringlever Linda   Otten Roy   van Schayck Onno C. P.   Engels Rutger C. M. E.   in Journal of Asthma

ISSN:0277-0903|49|10|1030-1036

Informa Healthcare‎(2012)‎

Access to resources Favorite 4.928593