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Many authorities would also measure free testosterone , DHEA-S , leuteinizing hormone , and follicle-stimulating hormone levels.Skin lesion cultures to rule out gram-negative folliculitis are warranted when no response to treatment occurs or when improvement is not maintained.Histologic Findings : The microcomedo is characterized by a dilated follicle with a plug of loosely arranged keratin . However , it became apparent from the two repurposing exercises that substantial changes may well be required when sharing reusable learning objects . Astronomers can thus build up a distance ladder , based on ever more-distant objects , ultimately leading to the use of supernovae as " standard candles " for the most distant reaches of the universe . Such interactions can hardly be termed as consultation meetings . On the receiving side , multiple channels can either be simultaneously played back , or one of channels can be selected for playback .