function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Faulwetter, Sarah & Simboura, Nomiki & Katsiaras, Nikolaos', 6],
    ['Gunton, Laetitia M. & Kupriyanova, Elena K. & Alvestad, Tom', 1],
    ['Mandal, Sumit & Deb, Soumya', 2],
    ['Mikac, Barbara', 1],
    ['Plathong, Jintana & Dean, Harlan K. & Plathong, Sakanan', 4],
    ['Plathong, Sakanan & Plathong, Jintana & Dean, Harlan K.', 4],
    ['Ribeiro, Rannyele Passos & Barbosa, Aline Da Cruz', 4],
    ['Wiklund, Helena & Rabone, Muriel & Glover, Adrian G', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);