Pegylated Interferon Alfa-2b Versus Interferon Alfa Therapy in Childhood and Adolescent Essential Thrombocythemia

Recombinant Interferon Alpha, with an initial dose of 300 wu twice a week. Other interferons that have been listed can be used if Recombinant Interferon Alpha (300 wu) is not available, and the specific dose will be determined by the researchers;

Pegylated Interferon Alfa-2b, with an initial dose of 135 ug once a week (body surface area \< 1.73 m2) or 180 ug once a week ( body surface area≥1.73 m2).