Br M Sports activities Scientif 08, 44:338�C343.CrossRef Thirty eight. Petticrew Meters, Tugwell S, Kristjansson E, Oliver Ersus, Ueffing At the, Welch Sixth is v: Damned should you choose, damned if you don��t: subgroup analysis and fairness. J Epidemiol Group Wellness Next year, 66:95�C98.CrossRef 39. Bjelland Meters: Weight problems elimination concentrating on Norwegian teenagers: Frequency ch