. "Heldin CH"^^ . "Ronnstrand L"^^ . "Engstrom U"^^ . "Kallin A"^^ . "Ekman S"^^ . "PubMed"^^ . "11896619"^^ . "Oncogene 21(12);1870-5"^^ . "SHP-2 is involved in heterodimer specific loss of phosphorylation of Tyr771 in the PDGF beta-receptor."^^ . "2002"^^ .