Significance of sex and age of guinea pigs used in the assay of tuberculin.
D000367:Age Factors; D000818:Animals; D001681:Biological Assay; D006168:Guinea Pigs; D012737:Sex Factors; D012877:Skin Manifestations; D014373:Tuberculin / Q000032:analysis* / Q000494:pharmacology; D014374:Tuberculin Test; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis
D014373:Tuberculin