Nutrition 32 Dietetics 30 Operator theory 20 Microbiology 18 Pathology 16 Phonetica 12 Congresses 11 Physiology 10 Linear operators 8 Pharmacology and Toxicology 8 Differential equations, Partial 7 Developmental Biology-- Reproduction-- Growth 6 Functional analysis 6 Mathematical analysis 6 Mathematical physics 6 Mathematics 6 Differential equations-- Analysis-- Mathematics 5 Toeplitz operators 5 Differential equations, Nonlinear 4 Experientia (Journal) 4 Hamiltonian systems 4 History 4 Integral equations 4 Matrices 4 SYNTHETIC METHODS OF ORGANIC CHEMISTRY-- AN ANNUAL SURVEY 4 Banach spaces 3 CYTOGENETICS 3 DIGITAL BOOK ARCHIVE 3 Fourier analysis 3 Fourier and harmonic analysis 3