1. Ultrastructure of human sebaceous follicles and comedones following treatment with vitamin A acid;Wolff;Acta Dermatovener (Stockh) Suppl,1975
2. Topical vitamin A acid in acne vulgaris;Kligman;Arch Dermatol,1969
3. The responce of rabbit skin to compounds reported to have caused acneform dermatitis;Adams;Industrial Medicine, Ind Hyg Section,1941
4. An electron microscopic study of membrane-coating granules in normal skin and abnormal keratinization with reference to acid phosphatase activity;Takaki;Jpn J Dermatol,1971
5. An electron microscopic study of the keratinization process in the human epidermis;Wakasugi;Jpn J Dermatol,1968