*  biopsy
    *  biopsy, needle
    *  biopsy, fine-needle
    *  chorionic villi sampling
    *  conization
    *  sentinel lymph node biopsy
    *  dissection
    *  microdissection
    *  preservation, biological
    *  cryopreservation
    *  freeze drying
    *  freeze substitution
    *  refrigeration
    *  tissue preservation
    *  blood preservation
    *  organ preservation
    *  semen preservation
    *  punctures
    *  biopsy, needle
    *  blood specimen collection
    *  cordocentesis
    *  petrosal sinus sampling
    *  phlebotomy
    *  chorionic villi sampling
    *  paracentesis
    *  pericardiocentesis
    *  spinal puncture
    *  tissue and organ harvesting
    *  vaginal smears