Fig. 1.
(A) Actuarial survival of the patients treated by HU or Pi (“intention to treat” analysis). (B) Actuarial survival of the patients treated by HU or Pi, taking into account any switch of therapy (“main treatment” analysis). (━), HU; (⋄), Pi.
(A) Actuarial survival of the patients treated by HU or Pi (“intention to treat” analysis). (B) Actuarial survival of the patients treated by HU or Pi, taking into account any switch of therapy (“main treatment” analysis). (━), HU; (⋄), Pi.
