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There are 4 steps in the swallowing process; oral preparatory stage, oral stage, pharyngeal stage and esophageal stage.
Preliminary stage means that a task is in a preparatory phase or in simple terms still a work in progress.
St. Pius X Preparatory Seminary was created in 1961.
Meadowbrook Preparatory School was created in 1960.
Staines Preparatory School was created in 1930.
Pinewood Preparatory School was created in 1952.
Diliman Preparatory School was created in 1969.
Brophy College Preparatory was created in 1928.
The Oratory Preparatory School was created in 1859.
Worcester Preparatory School was created in 1970.
Brehm Preparatory School was created in 1982.