De or het dosisaanpassing?

The correct Dutch article is:

de dosisaanpassing

Rule Words ending in -ing: almost always de. See the rule

How to use dosisaanpassing

the dosisaanpassingde dosisaanpassing
this dosisaanpassingdeze dosisaanpassing
that dosisaanpassingdie dosisaanpassing
our dosisaanpassingonze dosisaanpassing
your dosisaanpassingjouw dosisaanpassing
every dosisaanpassingelke dosisaanpassing
which dosisaanpassing?welke dosisaanpassing?
a big dosisaanpassing / the big dosisaanpassingeen grote dosisaanpassing, de grote dosisaanpassing