필요�?서식 자료 역시 서식 자료실을 통해�?무료�?내려받을 �?있다�?합니�? If a grammatical principle that's extra to 서툴�?is a vowel �?and there's no other solution besides a vowel �?then that grammatical theory can not be additional to 서툴�? 의약품안전나�?의약품등검�? 의약