For a surgeon, to open private practice is tantamount to giving up the field altogether. For example, an internal medicine doctor needs only a blood-pressure gauge, a stethoscope, and such simple items, and he or she can hang out their own shingle.
對外科醫師而言，選擇開業也就是選擇放棄外科。例如，內科只要血壓計、聽診器等器材，一個人單打獨鬥就能開業。