Frequency - Word Form
  1 a.s.
  1 d.s.
  2 s.s.
  3 u.s.
 29 s
  1 1960s
  1 1970s
  1 1980s
  1 1990s
 65 as
  1 pancreas
  1 whereas
 25 has
  1 pnas
  1 matas
 11 was
  1 biologics
 12 ethics
 13 bioethics
  1 mimics
  1 economics
  1 topics
  5 genetics
  1 immunogenetics
  3 characteristics
  1 statistics
  4 leads
  2 gonads
  5 eds
  1 proceeds
  1 needs
  1 fields
  1 netherlands
  1 depends
  1 trends
  1 finds
  4 methods
  5 periods
  2 goods
  4 towards
  1 words
  2 choices
  1 prices
  1 devices
  2 services
  2 chances
  2 circumstances
  3 advances
  1 licences
  1 sciences
  1 differences
  1 occurrences
  2 sequences
  1 consequences
  8 resources
  1 reduces
  1 produces
  1 besides
  1 provides
  1 includes
  2 attitudes
  1 degrees
  1 sees
  2 stages
  1 challenges
  1 emerges
  4 approaches
  2 hughes
 17 species
  1 cross-species
  2 policies
  1 agencies
 21 antibodies
  1 xenoantibodies
  5 studies
  1 modifies
  1 strategies
  1 biotechnologies
  1 applies
  1 companies
  6 therapies
  1 series
  1 discoveries
  2 countries
  1 heresies
  1 subtleties
  3 realities
  2 sensibilities
  1 authorities
  1 uncertainties
  1 takes
  1 strokes
  1 les
  2 naples
  1 examples
  2 rules
  1 times
  1 sometimes
  1 comes
  2 becomes
 10 genes
  2 transgenes
  1 lines
  5 guidelines
  2 disciplines
  6 does
  1 epitopes
  1 types
  7 soares
  1 aires
  2 requires
  2 centres
  2 procedures
  1 figures
  1 measures
  6 creatures
  1 structures
  8 cases
  1 phases
  1 raises
  1 responses
  2 zoonoses
  1 xenozoonoses
  1 poses
  2 purposes
  1 illnesses
  1 expresses
  1 possesses
  3 causes
  1 viruses
  5 retroviruses
  1 debates
  1 indicates
 19 primates
  1 nonprimates
  1 demonstrates
  4 states
  1 diabetes
  1 gametes
  1 writes
  1 constitutes
  2 monocytes
  1 hepatocytes
  3 colleagues
  1 values
  1 éthiques
  1 quelques
 13 issues
 13 tissues
  1 leaves
  1 neves
  3 receives
  2 gives
  1 lives
  2 arrives
  2 relatives
  1 alternatives
  2 representatives
  1 directives
  1 survives
  3 ourselves
  4 involves
  1 deserves
 21 pigs
  3 proceedings
  3 findings
  6 beings
  1 things
  1 feelings
  1 honings
  1 hastings
  1 misgivings
  2 sachs
  1 break-throughs
  1 paths
  2 months
130 is
  1 paradis
 21 his
 63 this
  1 tzakis
  1 paris
  1 mouhtouris
  3 basis
  1 synthesis
  1 hypothesis
  1 trangenesis
  2 pathogenesis
  1 gametogenesis
  2 transgenesis
  1 plasmapheresis
  3 thrombosis
  1 prognosis
  1 apoptosis
  1 lysis
  1 dialysis
  2 analysis
  1 cytolysis
  1 matis
  1 avis
  1 jervis
  2 weeks
  9 risks
  1 deals
  1 reveals
 12 trials
 38 animals
  2 individuals
  1 michaels
  6 models
  1 daniels
  1 vessels
  4 levels
 26 cells
  1 hills
  1 polls
  1 protocols
  1 williams
  1 seems
  3 problems
  1 forms
  3 norms
  1 mechanisms
  6 means
 44 organs
  1 theologians
  1 orians
 16 humans
  1 trans
  1 evans
  1 cns
  1 exercens
  2 antigens
  1 lumens
  1 sirens
  1 citizens
  1 campaigns
  2 remains
  6 proteins
  1 jenkins
  1 rollins
  2 onions
  1 dimensions
  2 repercussions
  1 discussions
  1 preclusions
  1 conclusions
  1 counter-indications
  2 modifications
  1 publications
  5 implications
  1 applications
  3 relations
  1 combinations
  6 considerations
  1 considérations
  1 limitations
  1 xénotrasplantations
  1 xenotransplantations
  1 situations
  1 reservations
  1 organizations
  1 reactions
  3 infections
  1 rejections
  3 reflections
  1 functions
  1 traditions
  4 conditions
  3 questions
  1 precautions
  1 contributions
  1 institutions
  1 baboons
  1 retrotransposons
  2 persons
  2 lyons
  4 concerns
  1 dios
  1 philos
  1 buenos
  1 yannoutsos
  2 perhaps
  2 steps
  2 groups
  2 appears
  4 years
  1 members
  1 hinders
  1 refers
  2 offers
  1 researchers
  4 others
  4 barriers
  2 workers
  1 handlers
  3 matters
  3 livers
  1 theirs
  1 lors
  1 minors
  4 donors
  1 indicators
  5 factors
  1 occurs
  1 hours
  1 mass
  1 access
  4 success
  5 process
  1 nonetheless
  1 unless
  1 goodness
  2 likeness
  1 reasonableness
  1 richness
  1 readiness
  1 business
  1 fullness
  1 consciousness
  1 witness
  6 address
  2 congress
  5 progress
  1 kress
  3 press
  1 suppress
  3 express
  2 stress
  2 weiss
  1 loss
  3 auchincloss
  1 cross
  1 across
  1 discuss
  3 rats
  2 doubts
  1 acts
  2 contacts
  1 affects
  3 effects
  1 subjects
  1 reflects
 10 aspects
  2 prospects
  2 products
  1 islets
  1 grafts
  2 allografts
 17 xenografts
  1 rights
 17 its
  1 inhibits
  3 benefits
  1 costs-benefits
  1 limits
  9 results
  1 descendants
 16 transplants
  1 allotransplants
  2 xenotransplants
  1 participants
  1 accents
  9 agents
  1 recipients
 18 patients
  2 pronouncements
  1 disagreements
  1 arrangements
  2 elements
  1 retroelements
  2 requirements
  5 experiments
  1 environments
  1 documents
  6 represents
  2 patents
  1 contents
  1 prevents
  1 viewpoints
  1 amounts
  2 attempts
  9 hearts
  1 parts
  2 asserts
  1 efforts
  1 bioethicists
  1 ophthalmologists
  1 lists
  1 jurists
  4 scientists
  3 exists
  1 costs
  1 us
  1 aus
  2 irenaeus
  1 kroshus
  8 thus
  1 pius
  1 varmus
  1 analogous
  2 religious
  3 various
  1 serious
  6 infectious
  1 obvious
  5 endogenous
  1 dangerous
  1 virus
  2 cytomegalovirus
  2 retrovirus
  2 versus
  2 status
  2 emeritus
  1 views
  7 days
  1 pays
  2 ways
  6 always