The Ship Captain's Medical Guide by the Maritime and Coastguard Agency
= The Ship Captain's Medical Guide by the Maritime and Coastguard Agency
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https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/285630/mcga-shs_capt_guide_chap7.pdf
Chapter 7, Other diseases and medical problems, p. 155: scrotal swelling, light transmission and continuity into the groin. This is a government clinical manual, not a prescription for an individual.