Fig2B. from [doi:10.1016/S0960-9822(99)80266-8] Curr Biol 9(11): 605-8, Alexander WS; Rakar S; Robb L; Farley A; Willson TA; Zhang JG; Hartley L; Kikuchi Y; Kojima T; Nomura H; Hasegawa M; Maeda M; Fabri L; Jachno K; Nash A; Metcalf D; Nicola NA; Hilton DJ, Suckling defect in mice lacking the soluble haemopoietin receptor NR6. Copyright 1999 [PMID:10359701]