Eero Siivola recently returned from a 3 month research visit to Novartis, Switzerland. The visit was a part of a collaboration project between Novartis and Aalto. During the visit, Eero and his collaborators studied how non-parametric regression methods can be used to find out how a model describing drug behaviour in a body differs between adults and kids. The studied method was tested with real medical data and the early stage results are promising. The collaboration continues after the visit and the aim is to publish the results in the form of a journal article.