different adjuvants
different adsorption behavior
different advantages
different affinities
different age classes
different age groups
different agencies
different agents
different ages
different agonists
different alcohols
different aldehydes
different algorithms
different alkyl chain lengths
different allele frequencies

different alleles
different allergens
different alternatives
different altitudes
different amines
different amino acids
different amounts
different amplitudes
different analyses
different analytical approaches
different analytical methods
different analytical techniques
different anatomical sites
different angles
different animal models
different animal species

different animals
different anions
different answers
different antecedents
different antibodies
different antigens
different antimicrobials
different antioxidants
different applications
different approaches
different approximations
different architectures
different areas
different arrangements
different aspect ratios
different aspects

different assemblages
different associations
different assumptions
different atmospheres
different attitudes
different attributes
different authors
different autoimmune diseases
different backgrounds
different bacteria
different bacterial species
different barriers
different basins
different basis sets
different batches
different behavior

different behaviour
different beliefs
different benefits
different binding modes
different binding sites
different biological processes
different biological properties
different biomes
different biotic
different biotypes
different blends