The source of the "resident" flora.
D000985:Antisepsis; D005932:Gloves, Surgical; D006225:Hand / Q000382:microbiology*; D006801:Humans; D008722:Methods; D009262:Nails / Q000382:microbiology*; D012867:Skin / Q000382:microbiology*; D013242:Sterilization