Analisis praktik klinik keperawatan kesehatan masyarakat perkotaan: Pengaruh manajemen nyeri teknik relaksasi nafas dalam pada pasien post total knee replacement di ruang rawat bedah kelas III RSUP Fatmawati Jakarta. = Analysis of clinical practice on urban health nursing: Impact of deep breathing relaxation technique as a pain management on patient post total knee replacement procedure at sugical ward RSUP Fatmawati Jakarta