Department of Mathematics and Statistics;
Lancaster University;
Lancashire;
UK;
Department of Community Health Sciences;
Aga Khan University;
Karachi;
Pakistan;
Department of Medicine;
Visiting Faculty;
Aga Khan University;
Karachi;
Pakistan;
Department of Sociology;
University of Maryland;
College Park;
USA;
George Washington University;
District of Columbia Washington DC;
USA;
Health; Care; Utilization; Complex; Health; Survey; with; Sampling; Weights; Simulations; for; Complex; Survey; Pseudo; Likelihood; Three-Level; Data;