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The linkage signal on chromosome 4 is a migraine signal. BP.narrow: BPAD I, schizoaffective, bipolar-type (SA-BP), BPAD II. Mig.broad: Migraine self-diagnosed. Mig.narrow: Migraine diagnosed by MD. BPmig.narrow: BPAD, schizoaffective, bipolar-type (SA-BP), BPAD II, RUDD + Migraine diagnose by MD.
