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Randomised (concealed), blinded (outcome assessor), controlled trial with follow up to 11 days.
A suburb of Copenhagen, Denmark.
Health visitor nurses recruited 50 consecutive infants who were 2–10 weeks of age, and had ≥1 violent spells of crying (≥3 h each day) for ≥5 of the 7 previous days; typical colic behaviour during crying spells (ie, motor unrest, flexing knees against abdomen, and extending trunk, neck, and extremities) and not (or only temporarily) comforted by nappy changes, dummies, or being picked up, walked, or cradled; no known diseases or symptoms of …
Sources of funding: The Danish Health Insurance Fund and the Danish Chiropractors Association.
For correspondence: Dr J M Wiberg, Hold an vej 5, 2750 Ballerup, Denmark. Email