14-HDHA	14-hydroxy-docosahexaenoic Acid
17-HDHA	17-hydroxy-docosahexaenoic Acid
18-HEPE	18-hydroxy-eicosapentaenoic Acid
AE	Adverse Event
AEMPS	Agencia Española de Medicamentos y Productos Sanitarios
AFC	Alveolar Fluid Clearance
AR	Adverse Reaction
ARDS	Acute Respiratory Distress Syndrome
CRF	Case Report Form
CRO	Clinical Research Organisation
CSR	Clinical Study Report
DHA	Docosahexaenoic Acid
EC	Ethics Committee
EoS	End of Study
EPA	Eicosapentaenoic Acid
FTH	Fundación Teófilo Hernando
FSS	Fatigue Severity Scale
GCP	Good Clinical Practice
IC	Informed Consent
IP	Investigational Product
ISF	Investigator Site File
ITT	Intention To Treat
LTB4	Leucotrien B4
LX (A4, B4)	Lipoxins
Ma (R1, R2)	Maresins
MedDRA	Medical Dictionary for Regulatory Activities
mMRC	Modified Medical Research Council
PD (1, X)	Protectins
PG (E2, D2, F2α)	Prostaglandins
PI	Principal Investigator
PP	Per Protocol
SAE	Severe Adverse Event
SEMG	Sociedad Española de Médicos Generales y de Familia (Spanish society of general practitioners and family doctors)
SPM	Specialized Pro-resolving Mediator
SOP	Standard Operation Procedure
SS	Safety Set
TXB2	Thromboxane B2