Complex sentence: The Medical City (otherwise known by its acronym as TMC) is a tertiary care hospital in the Philippines where its health care complex serves some 40,000 in-patients and 400,000 out-patients annually.
Split into simpler sentences: The Medical City (TMC) is a tertiary care hospital in the Philippines. Its health care complex serves some 40,000 in-patients and 400,000 out-patients annually.