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Archived from the original on 18 September 2021
Several theories explain why headaches occur

doi: 10.3390/nu10040525

Methods Enzymol 527:319
OR also activate phospholipase C and mitogen-activated protein (MAP) kinases pathways (Law et al., Recently, a new notion has emerged from pharmacological studies of GPCR, called biased agonism or functional selectivity
