function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Gasca-Álvarez, Héctor Jaime & Deloya, Cuauhtémoc', 1],
    ['Hawks, David C.', 9],
    ['Monzón-Sierra, José & Blackaller-Bages, Julian Federico', 6],
    ['Moore, Matthew R. & Jameson, Mary L. & Garner, Beulah H.', 115],
    ['Moore, Matthew Robert & Jameson, Mary Liz', 1],
    ['Mora-Aguilar, Eder F. & Curoe, Daniel & Delgado, Leonardo', 9],
    ['Paucar-Cabrera, Aura', 1],
    ['Pérez-Hernández, Cisteil Xinum', 2],
    ['Robacker, David C. & Hawks, David C. & Castillo, Naidely', 1],
    ['Sierra, José Monzón', 11],
    ['Sierra, José Monzón & Hawks, David C.', 2],
    ['Sierra, José Monzón & Morales, Leccinum Jesús García', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=160)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);