TASK DEFINITION: In medical studies, treatments are tested within a group of study participants. You will be given a sentence of a study report in which your task is to list the phrases that give information about the participants of the study. You should list the phrases in the same order that they appear in the text, separated by commas. If no information about the participants is mentioned, just output "not found". Relevant information about participants include: gender, medical conditions, location, number of people participating. Do not contain participant mentions without relevant information.
PROBLEM: Another clinical assessment was done 3 months after the first followup .

SOLUTION: not found

PROBLEM: Patients in the experimental group received a brief note in which they were explicitly asked to increase both their physical activity level and time of sun exposure , while control group patients did not receive these explicit recommendations .

SOLUTION: not found

PROBLEM: Weights and heights were measured at the tri-monthly treatment visits for a period of one year .

SOLUTION:
not found