Nils Johan Hugo Westermark (September 9, 1892 – January 24, 1980) was a

Swedish Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by ...

sailor A sailor, seaman, mariner, or seafarer is a person who works aboard a watercraft as part of its crew, and may work in any one of a number of different fields that are related to the operation and maintenance of a ship. While the term ''sailor'' ...

who competed in the

1912 Summer Olympics The 1912 Summer Olympics (), officially known as the Games of the V Olympiad () and commonly known as Stockholm 1912, were an international multi-sport event held in Stockholm, Sweden, between 6 July and 22 July 1912. The opening ceremony was he ...

. He later became a radiologist, and described the

Westermark sign In chest radiograph A chest radiograph, chest X-ray (CXR), or chest film is a projection radiograph of the chest used to diagnose conditions affecting the chest, its contents, and nearby structures. Chest radiographs are the most common film ...

. He was a crew member of the Swedish boat ''Sans Atout'', which won the silver medal in the 8 metre class.

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* * * * 1892 births 1980 deaths Swedish male sailors (sport) Sailors at the 1912 Summer Olympics – 8 Metre Olympic sailors for Sweden Olympic silver medalists for Sweden Olympic medalists in sailing Medalists at the 1912 Summer Olympics {{Sweden-yachtracing-bio-stub