il

1. he (third-person singular masculine subject pronoun for human subject)
2. it (third-person singular subject pronoun for grammatically masculine objects)
3. Impersonal subject; it

ne

1. not (used alone to negate a verb; now chiefly with only a few particular verbs: see usage notes)
2. not, no (used before a verb, with a coordinating negative element usually following; see Usage Notes, below)
3. Used in a subordinate clause before a subjunctive verb (especially when the main verb expresses doubt or fear), to provide extra overtones of doubt or uncertainty (but not negating its verb); the so-called "pleonastic" or "expletive" ne.
4. In comparative clauses usually translated with the positive sense of the subsequent negative

des

• Article

  1. plural of un (“some; the plural indefinite article”)
  2. plural of une (“some; the plural indefinite article”)
  3. plural of du (“some; the plural partitive article”)
  4. plural of de la (“some; the plural partitive article”)
  5. plural of de l’ (“some; the plural partitive article”)

• Contraction

oncologues

plural of oncologue

ou

1. or
2. either...or

spécialistes

plural of spécialiste

en

• Prep

  1. in (used to indicate space, also see usage notes)
  2. to (indicates direction towards certain very large locations, see usage notes)
  3. by (used to indicate means)
  4. as
  5. at (used to describe an ability)
  6. of, made of (used to describe composition)
  7. in (during the following time (used for months and years))
  8. while
  9. by, in (describing a way of getting something)
  10. in (used to describe color)
  11. in (used to describe feelings)
  12. in (as part of something)

• Pron

cancérologie

oncology