P. J. Ryan

Endorphins and mood changes in long-distance running

R A Markoff, P. J. Ryan, T Young · Medicine & Science in Sports & Exercise · 1982 · 126 citations

Medicine, Pharmacology, Psychology +13

A clinical profile of back pain and disability in patients with spinal osteoporosis

P. J. Ryan, Glen Blake, R. J. M. Herd et al. · Bone · 1994 · 110 citations

Medicine, Orthopaedic Surgery, Orthopedic Surgery +16

Dual energy x-ray absorptiometry: The effects of beam hardening on bone density measurements

Glen M. Blake, Diane B. McKeeney, Sanjiv C. Chhaya et al. · Medical Physics · 1992 · 76 citations

Medicine, Radiology, Biomedical Imaging +12

Measurements of broadband ultrasonic attenuation in the calcaneus in premenopausal and postmenopausal women

R. J. M. Herd, T. Ramalingham, P. J. Ryan et al. · Osteoporosis International · 1992 · 66 citations

Medicine, Anatomy, Radiology +12

Measurements of postmenopausal bone loss with a new contact ultrasound system

R. J. M. Herd, G. M. Blake, Thanesan Ramalingam et al. · Calcified Tissue International · 1993 · 53 citations

Medicine, Orthopedic Surgery, Radiology +14