function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chavez Hoffmeister, Martin & Carrillo-Briceño, Jorge D.', 1],
    ['Cremonte, Florencia & Drago, Fabiana B.', 1],
    ['Forster, Johann Reinhold', 1],
    ['Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L.', 7],
    ['Just, João Paulo Gava & Rosoni, Jonas Rafael Rodrigues', 1],
    ['Lima, Rafael Dantas & Silveira, Luís Fábio', 1],
    ['Mathews, G. M.', 1],
    ['Miller, John Frederick', 1],
    ['Mlíkovský, Jiří & Frahnert, Sylke', 3],
    ['Myrcha, Andrzej & Jadwiszczak, Piotr & Tambussi, Claudia', 4],
    ['Somenzari, Marina & Amaral, Priscilla Prudente do', 2],
    ['Vieillot, Louis Pierre', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=24)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);