function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aliyev, Azer & Maharramova, Sheyda', 4],
    ['Broad, Gavin R.', 24],
    ['Cresson, E. T.', 3],
    ['Gadallah, N. S. & Ahmed, R. S. & Heneidy, A. H. El-', 3],
    ['Khalaim, Andrey I. & Kasparyan, Dmitri R.', 6],
    ['Khalaim, Andrey I. & Ruíz-Cancino, Enrique', 25],
    ['Kolarov, J.', 10],
    ['Padua, Diego G. & Fernandes, Daniell R. R.', 9],
    ['Pádua, Diego G. & Araujo, Rodrigo O. & Mazariegos, Luis A.', 5],
    ['Pádua, Diego G. & Fernandes, Daniell R. R. & Araujo, Rodrigo O.', 3],
    ['Riedel & Pénigot & Schwarz & Diller & Johansson & Japoshvili, G.', 14],
    ['Riedel, Matthias & Diller, Erich & Japoshvili, George', 6],
    ['Smith, Frederick', 4],
    ['Varga, Oleksandr', 13],
    ['Çoruh, S. & Özbek, H.', 11],
    ['Other (22)', 27]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=167)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);