Columbia subject headings:
Cells--Permeability--Congresses.
Cytology--Technique--Congresses.
Genetic engineering--Congresses.
Liposomes--Congresses.
Macromolecules--Congresses.
Mammals--Cytology--Technique--Congresses.
Microinjections--Congresses.
Harvard subject headings:
Cells--Permeability--Congresses.
Cytology--Technique--Congresses.
Genetic engineering--Congresses.
Liposomes--Congresses.
Macromolecules--Congresses.
Mammals--Cytology--Technique--Congresses.
Microinjections--Congresses.
Princeton subject headings: