title: Common 3-dimensional coordinate system for assessment of directional changes.
authors: New Delhi, Delhi, India.
authors: Rajiv
authors: R
authors: Balachandran
authors: New Delhi, Delhi, India.
authors: Om P
authors: OP
authors: Kharbanda
authors: New Delhi, Delhi, India.
authors: Abhishek
authors: A
authors: Gupta
mesh_terms: D002508:Cephalometry; D006257:Head; D006801:Humans; D021621:Imaging, Three-Dimensional; D009068:Movement