function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cho, H. - W. & An, S. L.', 1],
    ['Ghahari, Hassan & Borowiec, Lech', 1],
    ['Groll, Elisa Von', 1],
    ['Kuprin, A. V. & Kolyada, N. A. & Kasatkin, D. G.', 1],
    ['Li, You & Wang, Zhiliang & Guo, Jianjun & Napoles, Jesus Romero', 1],
    ['Napoles, Romero & de, Aracely & Cruz & Kingsolver, John M.', 3],
    ['Nápoles, Jesús Romero & Westcott, Richard L.', 1],
    ['Pérez-Hernández, Cisteil Xinum', 1],
    ['Ribeiro-Costa, Cibele S. & Almeida, Lúcia M. & Caron, Edilson', 5],
    ['Romero, Jesús & Johnson, Clarence Dan', 3],
    ['Romero-Nápoles, Jesús', 6],
    ['Sepúlveda-Cano, Paula A. & Ramírez-Mora, Manuel A.', 1],
    ['Stojanova, Anelia & György, Zoltán', 2],
    ['Viana, Jéssica Herzog', 1],
    ['Viana, Jéssica Herzog & Ribeiro-Costa, Cibele Stramare', 1],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=30)',
    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);