
Hannah Baker Hitzhusen
Director Healthcare
Based in the Rotterdam office
+31 10 282 3545

Debora Corfield
Research Director Healthcare
Based in the London office
+44 208 222 7701
In-house moderators
Our qualitative research experts have personally moderated countless focus groups and individual in-depth interviews with consumers, business managers, healthcare professionals, key opinion leaders, patients and payers.
Being involved from the kick-off to the final delivery of research results, we have an in-depth understanding of what is relevant to your business issue during moderation.
Meet some of our expert moderators
Debora Corfield | Research Director London
Debora is a physiologist with 9 years' experience working in the healthcare and pharmaceutical industry. She has a particular interest in oncology and cardiovascular indications as well as Women's Health and has conducted numerous multi-country studies.
Marcel Slavenburg | Director Fieldwork & Healthcare NL
Marcel is a highly skilled qualitative researcher with 10 years' experience in medical market research. Projects moderated include treatment pathway analyses, concept & ad testing and patient studies - in nearly all therapy areas, in Dutch and English.
Eva Kulla | Project Director Rotterdam
Eva is a psychologist with over 7 years of research experience in the pharmaceutical and consumer health industries. She has conducted many interviews, creative workshops and focus groups with KOLs, patients and caregivers - in German and English.


Marcel Slavenburg | Director Fieldwork & Healthcare NL