function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bezděk, Aleš & Hájek, Jiří & Ascr, Biology Centre', 12],
    ['Carvalho, Edrielly C. & Maldaner, Maria Eduarda', 1],
    ['Chamorro, William & Marin-Armijos, Diego & senjo, Angelico', 12],
    ['Cárdenas-Bautista, Johann Stephens', 2],
    ['He, Tongli & Zhang, Runzhi & Frank W. Pelsue, Jr.', 1],
    ['Hielkema, Auke J. & Hielkema, Meindert A.', 5],
    ['Kohlmann, Bert & Solis, Angel & Alvarado, Guillermo E.', 1],
    ['Nazaré-Silva, Everton E. & Moura, Ana B. G.', 2],
    ['Taboada-Verona, Carlos & Sermeño-Correa, Carlos', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=37)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);