The pictorial Fit-Frail Scale-Malay version (PFFS-M): reliability and validity testing in Malaysian primary care de réir Ahip, Sally Suriani, Ghazali, Sazlina Shariff, Theou, Olga, Samad, Azah A., Lukas, Sabrina, Mustapha, Ummu Kalsum, Thompson, Mark Q., Visvanathan, Renuka