function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cope, E. D.', 5],
    ['Ibiricu, Lucio M. & Martínez, Rubén D. & Luna, Marcelo', 1],
    ['Iori, Fabiano Vidoi & Marinho, Thiago Da Silva', 1],
    ['Kellner, Alexander W. A. & Pinheiro, André E. P.', 2],
    ['Lambe L. M.', 2],
    ['Meylan, Peter A. & Sterrer, Wolfgang', 1],
    ['Nesbitt, Sterling J.', 1],
    ['Oliveira, Gustavo Ribeiro De & Kellner, Alexander Wilhelm Armin', 2],
    ['Wang, Xiaolin & Campos, Diogenes De Almeida & Zhou, Zhonghe', 2],
    ['Zhou, Chang-Fu', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=18)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);