[Studies on the lyophilization of small quantities of PPD. 2. Effect of the addition of gum arabic on arrest of dispersion of PPD].
D005612:Freeze Drying; D006170:Gum Arabic; D012116:Resins, Plant; D012117:Resins, Synthetic / Q000494:pharmacology*; D014373:Tuberculin / Q000737:chemistry*
D012116:Resins, Plant; D012117:Resins, Synthetic; D014373:Tuberculin; D006170:Gum Arabic
RESINS/pharmacology; TUBERCULIN/chemistry