function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['An, Jeong-Seop & Choi, Sei-Woong & Ronkay, László', 1],
    ['Kerschbaum, Walter & Standfest, Johann', 1],
    ['Koshkin, E. S. & Benedek, B. & Golovizin, V. A.', 1],
    ['Pogue, Michael G.', 5],
    ['Rybalkin, S. A. & Benedek, B. & Dubatolov, V. V.', 5],
    ['Saldaitis, Aidas & Benedek, Balázs & Visinskiene, Giedre', 2],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 2],
    ['Volynkin, Anton V. & Titov, Sergey V.', 2],
    ['W, M.', 2],
    ['Weidlich, Michael', 4],
    ['Wiesmair, Benjamin & Shirvani, Asghar & Ronkay, Laszlo', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);