Calculus 16 Functions of complex variables-- Analysis-- Mathematics 11 Analysis-- Mathematics 10 Graph theory-- Mathematics 8 Mathematics 8 Pharmacology and Toxicology 7 Physics 7 Algebra 6 Molecular biology 6 Abstract algebra-- Mathematics 5 Computer science 5 Genetics 5 Microbiology 5 Number theory-- Algebra-- Mathematics 5 Biophysics 4 Coding Theory-- Galois Theory 4 Functional analysis-- Mathematics 4 Graph theory 4 Partial differential Equations 4 Probability Theory 4 Biochemistry 3 Bioinformatics 3 Complex Analysis 3 Data structures 3 Differentation 3 Engineering 3 Helminthology 3 Inference 3 MOLECULAR BIOLOGY 3 ORGANIC REACTION MECHANISMS 3