COCOLIFE HEALTHCARE • COOPERATIVE HEALTH MANAGEMENT FEDERATION • GENERALI PILIPINAS • HEALTH DELIVERY SYSTEMS, INC. (FLEXICARE) • HEALTH MAINTENANCE INC. • LACSON & LACSON • MEDASIA PHILIPPINES • PHILIPPINE BRITISH ASSURANCE COMPANY • SUN LIFE GREPA FINANCIAL, INC./GREPALIFE • VALUCARE HEALTH SYSTEM, INC.