Hynes Lab mice available from the Jackson Laboratory =Matrix Integrins Selectins Other Matrix Fibronectin-null von Willebrand factor-null Thrombospondin-null Integrins alpha-4-null alpha-5-null alpha-v-null beta3-null Selectins P-selectin-null E-selectin-null L-selectin-null P/E-selectin-null P/L-selectin-null E/L-selectin-null ELP-selectin-triple- null Other N-cadherin-null P-cadherin-null