Articles: PubMed: Population expanding with the phalanx model and lineages split by environmental heterogeneity: a case study of Primula obconica in subtropical China. PubMed: Synthesis and antitumour activity of the Primin (2-methoxy-6-n-pentyl-1,4-benzoquinone) and analogues. PubMed: Primin in the European standard patch test series for 20 years. PubMed: Miconidin and miconidin methyl ether from Primula obconica Hance: new allergens in an old sensitizer. PubMed: Primula allergic dermatitis simulating occupational contact dermatitis induced by metals, oils and greases. PubMed: Contact erythema multiforme from Primula obconica. PubMed: Primula obconica--is contact allergy on the decline? PubMed: Genetic diversity in Primula obconica (Primulaceae) from central and south-west China as revealed by ISSR markers. PubMed: Composition of volatile oil of Primula obconica in Central China. PubMed: Plant regeneration from cell suspension-derived protoplasts of Primula malacoides and Primula obconica. PubMed: Primin-free Primula obconica plants available. PubMed: Direct emission of the allergen primin from intact Primula obconica plants. PubMed: Routine testing for Primula obconica: is it useful in the United States? PubMed: 2-methoxy-6-pentyl-1,4-dihydroxybenzene (miconidin) from Primula obconica: a possible allergen? PubMed: Structure-activity relationships in allergic contact dermatitis (I). Studies on the influence of side-chain length with derivatives of primin. PubMed: [Primula eczema--well-known and overlooked]. PubMed: Primula contact dermatitis: an easily overlooked diagnosis. PubMed: Contact dermatitis and Primula obconica. PubMed: Primula obconica sensitivity and testing with primin. PubMed: Contact dermatitis from Primula obconica Hance. PubMed: [Allergic contact dermatitis caused by garlic, Primula, Frullania and Compositae]. PubMed: [Primula dermatitis]. PubMed: Studies on heteromorphic self-incompatibility systems: Physiological aspects of the incompatibility system of Primula obconica. PubMed: Studies on heteromorphic self-incompatibility systems: the cytochemistry and ultrastructure of the tapetum of Primula obconica. PubMed: Alopecia areata regrowth induced by Primula obconica. PubMed: The sensitizing capacity of naturally occurring quinones. Experimental studies in guinea pigs. II. Benzoquinones. PubMed: On the occurrence of the contact allergen primin and other quinoid compounds in species of the family of primulaceae. PubMed: [Contact dermatitis to Primula obconica. Incidence--active sensitization in epicutaneous testing]. PubMed: Sensitization by routine patch testing with ether extract of Primula obconica. PubMed: Routine patch testing with ether extract of Primula obconica. PubMed: Patch testing with synthetic primin in persons sensitive to Primula obconica. PubMed: Aspects of sieve element ultrastructure in Primula obconica. PubMed: PLANT DERMATOSES: SOME CHEMICAL ASPECTS AND RESULTS OF PATCH TESTING WITH EXTRACTS OF PRIMULA OBCONICA. PubMed: Primula obconica, a carrier of tobacco necrosis viruses. PubMed: Acute Blepharitis, due to the Primula Obconica. PubMed: Poisoning by the "Primula Obconica.".