function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Claus, Carl Friedrich Wilhelm', 1],
    ['Diaz, Analía R. & Álvarez, Victor Hugo Merlo', 1],
    ['Komai, Taku', 1],
    ['Luque, José L. & Tavares, Luiz E. R.', 1],
    ['Madinabeitia, Ione & Tang, Danny & Nagasawa, Kazuya', 7],
    ['Olsson, P.', 1],
    ['Piasecki, Wojciech & Boxshall, Geoffrey A.', 1],
    ['Pombo, Maíra & Turra, Alexander & Paschoal, Fabiano', 1],
    ['Uyeno, Daisuke & Tang, Danny & Nagasawa, Kazuya', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    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);