function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Grygier, Mark J. & Suárez-Morales, Eduardo', 1],
    ['Lee, Jimin & Chang, Cheon Young', 1],
    ['Suarez-Morales, Eduardo', 2],
    ['Suarez-Morales, Eduardo & Castellanos-Osorio, Ivan A.', 1],
    ['Suárez-Morales, E. & Escamilla, J. B.', 1],
    ['Suárez-Morales, Eduardo', 12],
    ['Suárez-Morales, Eduardo & Carrillo, Allan', 1],
    ['Suárez-Morales, Eduardo & Dias, C.', 4],
    ['Suárez-Morales, Eduardo & Escamilla, B.', 1],
    ['Suárez-Morales, Eduardo & Gasca, R.', 1],
    ['Suárez-Morales, Eduardo & Goruppi, A. & de Olazabal, A', 1],
    ['Suárez-Morales, Eduardo & Goruppi, Alenka', 2],
    ['Suárez-Morales, Eduardo & Islas-Landeros, M.', 1],
    ['Suárez-Morales, Eduardo & Ramírez, Fernando C. & Derisio, C.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);