TY - GEN AU - Ostergaard,M S TI - Natural history of childhood asthma. Other studies have been ignored SN - 0959-8138 PY - 1994///1209 KW - Aging KW - physiology KW - Asthma KW - Child KW - Cohort Studies KW - Humans KW - Prospective Studies N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1136/bmj.309.6961.1086 ER -