Retrospective cohort versus case-control study - A comment on chronic obstructive pulmonary disease and low bone mass: A case-control study
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2015-01-01
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| Series: | Lung India |
| Online Access: | http://www.lungindia.com/article.asp?issn=0970-2113;year=2015;volume=32;issue=2;spage=200;epage=201;aulast=Kaushal |