<prompt> Ouchterlony procedure is a immunodiffusion bySingle diffusion in one dimensionDouble diffusion in one dimensionSingle diffusion in two dimensionsDouble diffusion in two dimensions  <response>: Single diffusion in one dimension - Oudin procedureDouble diffusion in one dimension - Oakley fulthorpe procedureSingle diffusion in two dimensions - Radial immunodiffusionDouble diffusion in two dimensions - Ouchterlony procedure 