Abbreviations: HAM: H.Adam Malik Hospital; PIR: Pirngadi Hospital; MAL: Malahayati Hospital; HER: Herna Hospital; ZA: Zainul Abidin Hospital; MJA: M. Djamil
Hospital; MHA: M. Hoesin Hospital; PKB: Pekanbaru Hospital; MD MNC: Medan Denai Municipality; MA MNC: Medan Area Municipality; MT MNC: Medan Tuntungan
Municipality