function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chanabun, Ratmanee & Bantaowong, Ueangfa & Sutcharit, Chirasak', 9],
    ['Chanabun, Ratmanee & Inkavilay, Khamla & Panha, Somsak', 8],
    ['Chanabun, Ratmanee & Sutcharit, Chirasak & Tongkerd, Piyoros', 42],
    ['Csuzdi, Csaba & Szederjesi, Tímea & Sherlock, Emma', 1],
    ['Jirapatrasilp, Parin & Prasankok, Pongpun & Sutcharit, Chirasak', 3],
    ['Nguyen, Tung T. & Nguyen, Anh D. & Tran, Binh T. T.', 2],
    ['Tiwari, Nalini & Paliwal, R. & Rashid, Azhar & Yadav, Shweta', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=68)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);