function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['DE ALBUQUERQUE, EMÍLIA ZOPPAS & PRADO, LÍVIA PIRES DO', 3],
    ['Dias, Amanda Martins & Lattke, John Edwin', 10],
    ['Forel, A.', 1],
    ['Lenhart, Paul A. & Dash, Shawn T. & Mackay, William P.', 9],
    ['Mayr, G.', 1],
    ['Mayron E Escárraga & John E Lattke & Celso O Azevedo', 2],
    ['Schmidt, C. A. & Shattuck, S. O.', 2],
    ['Wild, A. L.', 2],
    ['Wild, Alexander L.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=31)',
    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);