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- [6] THE LUNG OF AN OLD MAN - CHANGES AND DISEASES IN OLD-AGE ZEITSCHRIFT FUR GERONTOLOGIE, 1982, 15 (03): : 194 - 204
- [7] DIFFERENTIAL CHANGES IN MENTAL ABILITIES IN OLD-AGE JOURNALS OF GERONTOLOGY, 1957, 12 (01): : 66 - 70
- [9] CHANGES OF HANDWRITING IN OLD-AGE (WITH 4 TABLES) ZEITSCHRIFT FUR GERONTOLOGIE, 1977, 10 (05): : 355 - 364