Patch and photopatch tests in contact dermatitis and photodermatitis: a preliminary report of investigation of 150 patients, with special reference to "cedar-poisoning".
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Adolescent↗
Biomedical subjects
J C Mitchell
Publications and source records attributed to J C Mitchell.
Proportionate distribution of skin diseases in a dermatological practice: enumeration by standard nomenclature of 12,578 cases from clinic and private practice.
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British Columbia↗
Allergic contact and photodermatitis.
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Aged↗
Placenta circumvallata associated with internal rupture of the membranes during pregnancy.
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Clubfoot↗
Stereoisomeric specificity of usnic acid in delayed hypersensitivity.
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Benzofurans↗
The kinetics of recuperation following 55 MeV proton irradiation. Sam-TR-66-5.
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Animals↗
Some effects of 55-Mev protons on primates.
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Animals↗
Some effects of 138-Mev protons on primates.
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Animals↗
Some effects of 400-Mev protons on primates.
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Animals↗
An estimate of the biological effects of the space proton environment.
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Animals↗
The kinetics of recuperation following 55-Mev proton irradiation.
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Animals↗
The relative biological effectiveness of 138-Mev protons as compared to cobalt-60 gamma radiation.
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Animals↗
Dermatitis venenata from lichens; biology of lichens related to criteria for diagnosis of occupational dermatitis and to industrial exposure risk.
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Benzofurans↗
Allergy to lichens. Allergic contact dermatitis from usnic acid produced by lichenized fungi.
Two forest workers affected with allergic contact dermatitis, which occurred only during work in forest areas, showed positive patch test reactions to lichens containing usnic acid and to isolated usnic acid. Lichens are plants composed of fungi living in symbiosis with algae. Usnic acid, one of the lichenic acids which accumulates in lichenized fungi, is a monobasic acid with dibenzofuran structure and antibiotic properties. Dibenzofuran is chemically related to furocoumarans. Lichens are plentiful in temperate zone forests and allergy to usnic acid represents some part of the "cedar-poisoning" problem in British Columbia. Geographical distribution of lichens containing usnic acid suggests that allergy to usnic acid will be found to be more common than presently recognized.
Adult↗
Some effects of 138 MeV protons on primates. The radiations of space. 3. SAM-TR-65-58.
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Animals↗
An investigation of the relative biologic effectiveness of 138-mev protons as compared to Co-60 gamma radiation. SAM-TR-65-52.
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Animals↗
Frullania (liverwort) phytodermatitis (woodcutter's eczema).
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British Columbia↗