function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baumgardner, David E. & Burian, Steven K. & Bass, David', 3],
    ['Baumgardner, David E. & Ávila, Socorro', 1],
    ['Belmont, Enide Luciana L. & Cruz, Paulo Vilela & Hamada, Neusa', 1],
    ['Belmont, Enide Luciana L. & Salles, Frederico F. & Hamada, Neusa', 1],
    ['Emmerich, Daniel & Molineri, Carlos', 2],
    ['Gonçalves, Inês C. & Da-Silva, Elidiomar R.', 2],
    ['Granados Martinez, Cristian E. & Dias, Lucimar Gomes', 1],
    ['L, Carlos Naranjo & Peters, Janice G. & del, Pedro López', 5],
    ['López, Tatiana Cárdenas & Flowers, Ralph Wills', 1],
    ['Molineri, Carlos & Dias, Lucimar Gomes & Gonzalez, Ivan', 2],
    ['Molineri, Carlos & Grillet, Maria-Eugenia & Nieto, Carolina', 1],
    ['Souto, Paula Malaquias & Angeli, Kamila Batista', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=21)',
    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);