Detlev Grabs (born 29 October 1960) is a researcher in anatomy and cell biology and a retired East German swimmer. Complete the following sentence: Detlev Grabs (born 29 October 1960) is a researcher in anatomy and cell biology and a retired East German swimmer. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ ️<unk>️<unk>️<unk>️<unk>️
1977 European Aquatics Championships.