Reformulation of Traditional Chamomile Oil: Quality Controls and Fingerprint Presentation Based on Cluster Analysis of Attenuated Total Reflectance–Infrared Spectral Data oleh Arman Zargaran PharmD, PhD, Amirhossein Sakhteman PharmD, PhD, Pouya Faridi PharmD, PhD, Saeid Daneshamouz PharmD, PhD, Amin Reza Akbarizadeh MSc, Afshin Borhani-Haghighi MD, Abdolali Mohagheghzadeh PharmD, PhD