Unto Wiitala

Recent publications · Crossref

5 total works indexed

1. Positive matrix factorization: A non‐negative factor model with optimal utilization of error estimates of data values

   · 1994 · cited 4,918x

2. Follow-up of Glycemic Control and Cardiovascular Outcomes in Type 2 Diabetes

   · 2015 · cited 529x

3. The Treatment of Acute Low Back Pain — Bed Rest, Exercises, or Ordinary Activity?

   · 1995 · cited 478x

4. Income-related inequalities in health: some international comparisons

   · 1997 · cited 449x

5. Analysis of different modes of factor analysis as least squares fit problems

   · 1993 · cited 395x

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