function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bariche, Michel & Fricke, Ronald', 1],
    ['Carneiro, Miguel & Martins, Rogélia & Landi, Monica', 2],
    ['Ebersole, Jun A. & Cicimurri, David J. & Stringer, Gary L.', 2],
    ['Ho, Hsuan-Ching & Smith, David G. & Huang, Jian-Fu', 1],
    ['Ho, Hsuan-Ching & Smith, David G. & Mccosker, John E.', 2],
    ['Karmovskaya, Emma S.', 5],
    ['Karmovskaya, Emma S. & Paxton, John R.', 4],
    ['Karrer, C.', 1],
    ['Lin, Chien-Hsiang & Nolf, Dirk', 1],
    ['Love, Milton S. & Bizzarro, Joseph J. & Cornthwaite, Maria', 1],
    ['Marcia Salustiano de Castro & Ana Cristina Teixeira Bonecker', 1],
    ['Melo, Marcelo R. S. & Nunan, Gustavo W. A. & Braga, Adriana C.', 1],
    ['Smith, David G. & Kanazawa, R. H.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=23)',
    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);