from an orientation-unbiased sample of Sunyaev-Zel'dovich and X-ray clusters by Jones, M, Edge, A, Grainge, K, Grainger, W, Kneissl, R, Pooley, G, Saunders, R, Miyoshi, S, Tsuruta, T, Yamashita, K, Tawara, Y, Furuzawa, A, Harada, A, Hatsukade, I