HPS0440 Disease specific iPS cell line derived from a patient : Rheumatoid Arthritis. HPS0440, HPS0441, HPS0442 were derived from the same patient. HPS0440 疾患特異的iPS細胞株。慢性関節リウマチ患者由来。HPS0440, HPS0441, HPS0442は同一人由来。Feeder free培養。緩慢冷却法保存。