Ranked  Features (m/z)	1PDX GBM - mouse brain tumor section	2PDX GBM - mouse brain tumor section	3PDX GBM - mouse brain tumor section	4PDX GBM - mouse brain tumor section	5PDX GBM - mouse brain tumor section	6PDX GBM - mouse brain tumor section	7PDX GBM - mouse brain tumor section	8PDX GBM - mouse brain tumor section
Feature#1 at m/z	450.2978	450.2978	450.2978	450.2978	450.2978	450.2978	450.2978	450.2978
Feature#2 at m/z	468.3084	468.3084	468.3084	468.3084	468.3084	468.3084	468.3084	468.3084
Feature#3 at m/z	480.9211	480.9211	480.9211	480.9211	480.9211	480.9211	480.9211	480.9211
Feature#4 at m/z	730.537	730.537	730.537	730.537	730.537	730.537	730.537	730.537
Feature#5 at m/z	428.3732	428.3732	428.3732	428.3732	428.3732	428.3732	428.3732	428.3732
Feature#6 at m/z	518.8773	518.8773	518.8773	518.8773	518.8773	518.8773	518.8773	518.8773
Feature#7 at m/z	400.9546	400.9546	400.9546	400.9546	400.9546	400.9546	400.9546	400.9546
Feature#8 at m/z	545.9591	545.9591	545.9591	545.9591	545.9591	545.9591	545.9591	545.9591
Feature#9 at m/z	703.5741	703.5741	703.5741	703.5741	703.5741	703.5741	703.5741	703.5741
Feature#10 at m/z	583.91437	583.91437	583.91437	583.91437	583.91437	583.91437	583.91437	583.91437