function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Gonçalves, Inês Corrêa & De-Souza, Márcia Regina', 1],
    ['Kluge, Nikita J.', 7],
    ['L, Carlos Naranjo & Peters, Janice G. & del, Pedro López', 2],
    ['Lima, Lucas R. C. & Jacobus, Luke M. & Pinheiro, Ulisses', 1],
    ['Massariol, Fabiana & Lima, Lucas R. C.', 2],
    ['Massariol, Fabiana Criste & Salles, Frederico Falcão', 2],
    ['Nieto, Carolina & Emmerich, Daniel', 4],
    ['Nieto, Carolina & Richard, Barton', 7],
    ['Salles, F. F. & Massariol, F. C. & Angeli, K. B. & Lima, M. M.', 11],
    ['Vasquez-Bolanos, Oscar & Sibaja-Araya, Fabian', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=40)',
    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);