[On the question of changes of novocain in injection solutions by the effect of oxygen in the presence of hydrogen sulfite].
D010100:Oxygen / Q000737:chemistry*; D011343:Procaine / Q000737:chemistry*; D013447:Sulfites / Q000737:chemistry*
D013447:Sulfites; D011343:Procaine; C042345:hydrogen sulfite; D010100:Oxygen
OXYGEN/chemistry; PROCAINE/chemistry; SULFITES/chemistry