function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aballay, Fernando H. & Arriagada, Gerardo & Flores, Gustavo E.', 1],
    ['Alekseev, Vitalii I.', 1],
    ['Conte, John L. Le', 1],
    ['Marseul, S. A. de', 2],
    ['Mazur, Sławomir & V, Alexey & V, Alexander & Barševskis, Arvids', 1],
    ['Penati, Fabio', 1],
    ['Peschel, Rüdiger', 1],
    ['Polat, Alper & Yildirim, Erol', 1],
    ['Reese, Ellen M. & Swanson, Alexander P.', 11],
    ['Zhang, Ye-Jun & Zhou, Hong-Zhang', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=25)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);