Availability and affordability of essential medicines for non-communicable disease management in primary healthcare: Evidence from three municipalities in Ghana - Mary Yeboah; Richard Abeiku Bonney; Loretta Adu-Boahemaa Antwi; Pius Amponsah Anane; Obed Kwabena Offe Amponsah; Peter Agyei-Baffour (PLoS ONE, 2026)