function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ancona López, A. A.', 2],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 1],
    ['Fowler, Henry Weed', 1],
    ['Fowler, Henry Weed & Steinitz, H.', 1],
    ['Golani, Daniel', 1],
    ['Golani, Daniel & Bogorodsky, Sergey V.', 1],
    ['Lin, Chien-Hsiang & Nolf, Dirk', 1],
    ['Matsubara, K.', 1],
    ['Nurettin Meriç & Lütfiye Eryilmaz & Müfit Özulug', 1],
    ['Smith, J. L. B.', 2],
    ['Smith-Vaniz, William F. & Jelks, Howard L.', 1],
    ['Tanaka, Shigeho', 1],
    ['Whitley, Gilbert P.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);