Henk van der Ploeg

Exploring differences between subgroups of multiple sclerosis patients in health-related quality of life

Lilian Pfennings, Leo Cohen, Herman J. Adèr et al. · Journal of Neurology · 1999 · 93 citations

Pharmacy, Health Sciences, Neurology +9

Preconditions for Sensitivity in Measuring Change: Visual Analogue Scales Compared to Rating Scales in a Likert Format

Lilian Pfennings, Leo Cohen, Henk van der Ploeg · Psychological Reports · 1995 · 59 citations

Social Sciences, Behavioral Sciences, Psychology +13

Psychological functioning in primary progressive versus secondary progressive multiple sclerosis

Luc Vleugels, Lilian Pfennings, Frans Pouwer et al. · British Journal of Medical Psychology · 1998 · 31 citations

Social Sciences, Neurology, Psychology +13

Using the Short Form-36 with Multiple Sclerosis Patients in Five Countries: A Cross-Cultural Comparison

Lilian Pfennings, Leo Cohen, Deborah Miller et al. · Psychological Reports · 1999 · 23 citations

Pharmacy, Health Sciences, Neurology +12

Reliability of Two Measures of Health-Related Quality of Life in Patients with Multiple Sclerosis

Lilian Pfennings, Leo Cohen, Henk van der Ploeg et al. · Perceptual and Motor Skills · 1998 · 17 citations

Pharmacy, Neurology, Functional Assessment +12