function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cherman, M. A. & De Almeida, Lúcia Massutti', 1],
    ['Cherman, Mariana A. & Basílio, Daniel S. & Mise, Kleber M.', 19],
    ['Cherman, Mariana Alejandra & Basílio, Daniel Silva', 22],
    ['Cherman, Mariana Alejandra & Mise, Kleber Makoto', 33],
    ['Hielkema, Auke J. & Hielkema, Meindert A.', 3],
    ['Taboada-Verona, Carlos & Sermeño-Correa, Carlos', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=79)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);