translation.en: In the late '70s, there were a group of Swedish orthopedic surgeons who met at their annual meeting, and they were discussing the different procedures they used to operate hip surgery.
translation.zh: 在70年代后期，有这么一群 瑞士外科整形医生， 在年会上， 他们讨论到目前众多的 用于髋关节手术的方法。