function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 1],
    ['Beals, Marty N.', 1],
    ['Cavallari, Daniel C. & Dornellas, Ana Paula S.', 2],
    ['Fehse, Dirk', 61],
    ['Fehse, Dirk & Grego, Jozef', 13],
    ['Fehse, Dirk & Simone, Luiz Ricardo L.', 11],
    ['Fehse, Dirk & van de Haar, Bram', 1],
    ['Leal, José H.', 1],
    ['Mariottini, Paolo & Smriglio, Carlo & Oliverio, Marco', 2],
    ['Pease, W. H.', 1],
    ['Rothpletz, (Friedrich) August & Simonelli, V.', 1],
    ['Sacchetti, Claudia & Landau, Bernard & Ávila, Sérgio P.', 2],
    ['Simone, Luiz Ricardo L. & Cunha, Carlo M.', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=100)',
    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);