preferred_name: Hair shaft shows partial twisting on its axis (periodicity of 1 to 2 mm)
preferred_name_lc: hair shaft shows partial twisting on its axis (periodicity of 1 to 2 mm)
label: Hair shaft shows partial twisting on its axis (periodicity of 1 to 2 mm)
label_lc: hair shaft shows partial twisting on its axis (periodicity of 1 to 2 mm)