function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alvim, Breno Ganns Chaves & Machado, Renato Jose Pires', 13],
    ['Ardila-Camacho, Adrian & Calle-Tobón, Arley & Wolff, Marta', 30],
    ['Ardila-Camacho, Adrian & Cancino-López, Rodolfo J.', 6],
    ['Ardila-Camacho, Adrian & García, Alexander', 39],
    ['Ardila-Camacho, Adrian & Martins, Caleb Califre & Aspöck, Ulrike', 5],
    ['Hassan, Muhammad Asghar & Oswald, John D. & Zia, Ahmed', 5],
    ['Hoffman, Kevin M. & Oliver S. Flint, Jr.', 11],
    ['Jepson, James E. & Khramov, Alexander V. & Ohl, Michael', 7],
    ['Kaur, Simarjit & Pandher, Manpreet Singh & Chandra, Kailash', 24],
    ['MACHADO, RENATO JOSÉ PIRES & RAFAEL, JOSÉ ALBERTINO', 25],
    ['Reynoso-Velasco, Daniel & Contreras-Ramos, Atilano', 5],
    ['Snyman, Louwrens P. & Sole, Catherine L. & Ohl, Michael', 14],
    ['Snyman, Louwtjie P. & Ohl, Michael & Mansell, Mervyn W.', 7],
    ['Wedmann, Sonja & Makarkin, Vladimir N.', 6],
    ['Yang, Xiushuai & Liu, Zhiqi', 5],
    ['Other (18)', 27]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=229)',
    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);