PubMed에서 검색했는데 왜 논문이 영어가 아닌가요?

[질문]   PubMed에서 검색했는데 왜 논문이 영어가 아닌가요?   [설명]   PubMed에서 논문 중에는 초록만 영어로 작성되었고 일본어, 중국어, 스페인어, 독일어 등 세계 각국의 언어로 작성된 논문들도 검색이 됩니다. 처음 검색하실 때 영어로만 제한을 두고 검색할 수도 있으며 검색된 내용을 확인하시면 제목 아래에 언어가 표시 되어 있습니다. 한 예로 아래 논문의 경우 초록은 영어로 작성되었지만 본문은 일본어로 작성된 논문입니다.   <A title="Nihon Kokyūki Gakkai zasshi = the journal of the Japanese Respiratory Society." href="xxxxxxjavascript:AL_get(this, 'jour', 'Nihon Kokyuki Gakkai Zasshi.');" _sg="true">Nihon Kokyuki Gakkai Zasshi.</A> 2006 Nov;44(11):879-84. <H1 class=title>[A case of septic pulmonary embolism showing the rapid appearance of multiple cavities </H1> <H1 class=title>in both lung fields induced by urinary tract infection].</H1> [Article in Japanese] <A href="http://editor.daum.net/pubmed?term=%22Miyaki%20J%22%5BAuthor%5D" _sg="true">Miyaki J</A>, <A href="http://editor.daum.net/pubmed?term=%22Souma%20S%22%5BAuthor%5D" _sg="true">Souma S</A>, <A href="http://editor.daum.net/pubmed?term=%22Narumiya%20Y%22%5BAuthor%5D" _sg="true">Narumiya Y</A>, <A href="http://editor.daum.net/pubmed?term=%22Chiba%20S%22%5BAuthor%5D" _sg="true">Chiba S</A>, <A href="http://editor.daum.net/pubmed?term=%22Kugiyama%20K%22%5BAuthor%5D" _sg="true">Kugiyama K</A>. Department of Respiratory Medicine, Yamanashi Kousei Hospital. <DIV class=abstract_text> <H3 class=abstract_label>Abstract</H3> A 69-year-old man who had benign prostatic hypertrophy and hypertension was admitted to our hospital because of urinary retention and high grade fever. Chest radiograph showed the appearance of multiple cavitating nodules in both lung fields within a few days after admission. Staphylococcus aureus was isolated in blood and sputum cultures, though there were no pathogens in urine culture. Abdominal CT demonstrated bilateral hydronephrosis. Since we could not detect any other infectious focuses such as bacterial endocarditis, septic thrombophlebitis etc., we reached the diagnosis of septic pulmonary embolism (SPE) induced by urinary tract infection (UTI). After diagnosis, the patient was given intravenous meropenem, ciprofloxacin, sulbactam/ampicilin, and recovered. Although several cases of SPE induced by UTI in diabetes mellitus patients have been reported, the present case who had no severe underlying disorder is very rare.  </DIV> PMID: 17144591 [PubMed - indexed for MEDLINE]