Publications by authors named "M A Willemsen"

Introduction: Due to decades of decentralisation of public health policies, local governments have been given increased tobacco control responsibilities across European countries. Previous studies suggest that implementing local tobacco control policies is not without challenges (e.g.

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Background: Tumor heterogeneity is a hurdle to effective therapy, as illustrated by the 'mixed responses' frequently seen in immunotherapy-treated patients. Previously, AXL+ tumor cells were identified to be highly resistant to targeted therapy, whereas more differentiated MITF+ tumor cells do respond to RAF and MEK inhibitors.

Patients And Methods: In this study, we analyzed tumor heterogeneity and explored the presence of the previously described AXL+ or MITF+ melanoma subpopulations in metastatic tissues by NanoString gene expression analysis, single-cell RNA sequencing and multiplex immunofluorescence.

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Introduction: Due to a continuing international trend of decentralization of public health policies, local governments are given an increasingly important role in tobacco control. The process of developing local-level tobacco control policies is an underexplored topic. This study uses grant applications as a data source to gain insight into the planning, development and proposed implementation of local tobacco control policies by regional public health departments in the Netherlands.

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Introduction: The public health impact of a tobacco tax increase depends on the extent to which the industry passes the increase onto consumers, also known as tax-pass through. In 2020, the Netherlands announced tax increases aimed to increase the retail price by €1 per 20 factory-made cigarettes and €2.50 per 50 grams of roll-your-own tobacco.

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