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Main Navigation Secondary Navigation Health Information Community Resources Laundry Services Resource Center The Critical Path Learning Center is open for scheduled education and hospitality services. To register for a service please use our website or call 2159854448 ext. 140 or find other resources in our online resource guide. Critical Path Learning Center The Critical Path Learning Center at Philadelphia FIGHT is an educational commons and stigmafree space devoted to the intersection of health and literacy for the digital age.