I think the answer is certification
Depends on weight of the bones, and how big their body is.
Your grandfather's surgery might take place in an old folks home or a hospital.
Answer: The etiology of the symptoms is the bacterium Bordetella pertussis.
Explanation: Etiology implies the "cause of" or "origin of" a disease. Paroxysmal cough is most commonly caused by the bacterium Bordetella pertussis. The cough is also accompanied by mucus accumulation in the airways. The bacterium infects the respiratory tract of an individual causing consistent coughing and excessive mucus production.