Fig. 1 Changeable nature of PHs

Fig. 2 Various differences of the skin over the PHs

Fig. 3 Location of palpable hardenings

Fig. 4 Relations between symptoms and PHs

Fig. 5 Importance of PHs, Usefulness of PHs

Fig. 6 Location of PHs, Aps, Rps and Rps

Fig. 7 Preference of site of stimulation

Table1 Questionnaire about palpable hardenings