"Back Pain." . . "Gymnastique." . . . . "Attitudes et maintien." . . . . . . . . . . . . "Backache, birth and figure relief by self-revolving hipbones" . . . . . "Backache birth and figure relief by self-revolving hipbones"@en . "Backache, Birth and Figure Relief by Self-Revolving Hipbones. [With illustrations.]" . "Backache, Birth and Figure Relief by Self-Revolving Hipbones. [With illustrations.]"@en . . . .