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RMED.1999.0720
RMED.1999.0720
http://dx.doi.org/10.1053/RMED.1999.0720
Direct medical costs of chronic obstructive pulmonary disease: chronic bronchitis and emphysema.
P356
Q41732648-FF46B3E9-1FAC-4F56-95EE-D1BF2EC47B30
P356
RMED.1999.0720
http://dx.doi.org/10.1053/RMED.1999.0720