function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Gertsson, Carl-Axel & Hodgson, Chris', 2],
    ['Hodgson, Chris', 1],
    ['MOGHADDAM, MASUMEH & WATSON, GILLIAN W.', 2],
    ['Moghaddam, Masumeh', 4],
    ['Pacheco Da Silva, Vitor C. & Kaydan, Mehmet Bora & Basso, Cesar', 3],
    ['Tsai, Ming-Yu & Wu, Wen-Jer', 2],
    ['Zarkani, Agustin & Fauzi, Ariffatchur & Apriyanto, Dwinardi', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    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);